[go: up one dir, main page]

WO2014014311A1 - Procédé permettant de préparer une matière active d'électrode positive destinée à une batterie rechargeable au magnésium et matière active d'électrode positive destinée à une batterie rechargeable au magnésium préparée au moyen dudit procédé - Google Patents

Procédé permettant de préparer une matière active d'électrode positive destinée à une batterie rechargeable au magnésium et matière active d'électrode positive destinée à une batterie rechargeable au magnésium préparée au moyen dudit procédé Download PDF

Info

Publication number
WO2014014311A1
WO2014014311A1 PCT/KR2013/006489 KR2013006489W WO2014014311A1 WO 2014014311 A1 WO2014014311 A1 WO 2014014311A1 KR 2013006489 W KR2013006489 W KR 2013006489W WO 2014014311 A1 WO2014014311 A1 WO 2014014311A1
Authority
WO
WIPO (PCT)
Prior art keywords
active material
secondary battery
magnesium secondary
magnesium
cathode active
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2013/006489
Other languages
English (en)
Korean (ko)
Inventor
조우석
김점수
김재헌
우상길
김영준
문보라
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Korea Electronics Technology Institute
Original Assignee
Korea Electronics Technology Institute
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Korea Electronics Technology Institute filed Critical Korea Electronics Technology Institute
Priority claimed from KR1020130085198A external-priority patent/KR101542838B1/ko
Publication of WO2014014311A1 publication Critical patent/WO2014014311A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/054—Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/581—Chalcogenides or intercalation compounds thereof
    • H01M4/5815—Sulfides
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present invention relates to a method for manufacturing a cathode active material for magnesium secondary battery and a cathode active material for magnesium secondary battery produced by the same, and more particularly, to a cathode active material for magnesium secondary battery that can increase reaction efficiency and lower side reaction ratio by controlling particle size. It relates to a manufacturing method and a cathode active material for magnesium secondary battery produced thereby.
  • lithium secondary batteries have high manufacturing costs per cell due to the cost of transition metals used for manufacturing despite the excellent performance, and there is a risk of ignition or explosion due to the high reactivity of lithium, and there is concern about depletion of lithium resources.
  • Recently, research on magnesium batteries has been actively conducted as an alternative.
  • Magnesium batteries are generally secondary batteries that use magnesium metal, etc. as a negative electrode, and are capable of charging and discharging by inserting and detaching magnesium ions into a cathode material. Magnesium is resource-rich, much cheaper than lithium, and The energy capacity per volume is theoretically more than twice that of a lithium ion battery, and is stable in the air, thus attracting attention as a next-generation secondary battery.
  • a magnesium battery using a Chevrel phase such as Mo 6 S 8 or molybdenum sulfide as a cathode material and Mg (AlCl 2 BuEt) 2 / THF as an electrolyte is known.
  • Molybdenum chalcogen compound, so-called Chevrel phase Mo 6 S 8 is known to be the most promising positive electrode active material of Mg secondary battery because of the fast cation transfer properties.
  • Mo 6 S 8 is applied as a cathode material of a magnesium secondary battery, magnesium ions inserted in the initial discharging stage (Mo 6 S 8 ⁇ Mg 2 Mo 6 S 8 ) partially trapped within the magnesium position.
  • the Chevrel phase is thermodynamically metastable, and thus is manufactured by an indirect method of removing metallic copper from a stable phase such as Cu 2 Mo 6 S 8 . It may be convenient to prepare the positive electrode active material Mg 2 Mo 6 S 8 directly by the high temperature solid-state reaction, but the Mg 2 Mo 6 S 8 prepared by the direct method has electrochemical activity due to the magnesium oxide (MgO) oxide film formed on the surface. Reported bad. Therefore, a method of preparing a stable phase such as Cu 2 Mo 6 S 8 to remove metal copper and refilling magnesium in place is used to prepare Mg 2 Mo 6 S 8 cathode active material.
  • a stable phase such as Cu 2 Mo 6 S 8 to remove metal copper and refilling magnesium in place is used to prepare Mg 2 Mo 6 S 8 cathode active material.
  • the present invention relates to a new method for producing a cathode active material for chevron structure magnesium secondary battery, and to provide a method for producing a cathode active material for chevron structure magnesium particles of which the particle size is controlled to a nano size.
  • Another object of the present invention is to provide a cathode active material for magnesium secondary batteries produced by the production method of the present invention.
  • the present invention to solve the above problems
  • It provides a method for producing a cathode active material for magnesium secondary battery comprising a.
  • the Mo compound is for example molybdenum oxide
  • the elemental X compound may be, for example, carbon disulfide, hydrogen sulfide, hydrogen selenide, hydrogen selenide.
  • the element A occupies a wyckoff position 18f, and is selected from the group consisting of Cu, Fe, Co, Ni, Cd, Zn, Mn, and Ag.
  • Silver may be, for example, copper oxide, iron oxide, cobalt oxide, manganese acetate and the like.
  • the Wycope position is Ralph W.G.
  • the 'position' in the Wykov position of the decision group refers to the position of the crystal in the stereographic projection.
  • the decision group also describes the Wykov position as the Wyck letter, whereby the element A occupies the 18 f position.
  • the step i) is characterized in that the stirring so that the particle size in the Mechano fusion apparatus 10nm to 100nm.
  • the particle size of the positive electrode active material is adjusted to a range of 10 nm to 100 nm by applying energy and stirring, whereby the positive electrode active material has a high specific surface area, thereby facilitating the transfer of magnesium ions between particles.
  • the Mechano fusion apparatus is characterized in that the high energy ball mill (high energy ball mill), planetary mill (planetary mill), stirred ball mill (stirred ball mill) or vibrating mill (vibrating mill).
  • high energy ball mill high energy ball mill
  • planetary mill planetary mill
  • stirred ball mill stirred ball mill
  • vibrating mill vibrating mill
  • the step ii) is characterized in that the mixture of step i) is heat-treated in an inert atmosphere for 20 to 25 hours at 1000 °C to 1200 °C.
  • the heat treatment in an inert atmosphere is to prevent oxidation of the metal, the inert atmosphere may be, for example, argon, nitrogen atmosphere, preferably an argon atmosphere.
  • step iii) A is released in the presence of an oxidizing agent, and magnesium ions are inserted.
  • the oxidizing agent is a substance that oxidizes a counterpart while reducing itself in a redox reaction, and serves to desorb A, and may use nitric acid, perchloric acid, hydrochloric acid, and the like, preferably hydrochloric acid.
  • A in step iii), as another method, A may be detached by ion exchange and magnesium ions may be inserted. It is possible to replace A with magnesium in part or in whole.
  • the ion exchange method is a method in which ion exchange occurs between magnesium contained in the magnesium-containing liquid and A constituting the cathode active material-forming material by adding the positive electrode active material forming material to the magnesium-containing liquid.
  • the magnesium containing liquid include MgCl 2 and the like.
  • the magnesium-containing liquid used in the present invention may be an electrolyte solution used in the magnesium secondary battery. As the solvent, it is possible to use Mg (NO 3 ) 2 or the like.
  • Heat may be used as an example of a method of advancing ion exchange by an ion exchange method.
  • the method using heat is a method in which an ion exchange reaction proceeds by adding a positive electrode active material forming material to a magnesium-containing liquid and heating it.
  • the use of heat can result in good ion exchange reactions being carried out in a short time.
  • Heating temperature is 300-400 degreeC normally, and 330-350 degreeC is preferable.
  • the heating time is usually 1 to 10 hours, preferably 2 to 5 hours.
  • the present invention also provides a cathode active material for a magnesium secondary battery prepared by the production method of the present invention and represented by the following general formula (2).
  • the cathode active material for magnesium secondary battery has a Chevrel structure, characterized in that the magnesium ion is inserted / detached by an electrochemical method or a chemical method.
  • the cathode active material produced by the production method of the present invention is characterized by consisting of particles of 10 nm or more and 500 nm or less in diameter.
  • the production method of the present invention has a high specific surface area by controlling the size of the particles in such a range, thereby facilitating the transfer of magnesium ions between particles.
  • the activation energy required to insert magnesium ions into the positive electrode active material is 0.4-0.6 eV, characterized in that the voltage of the electrochemical cell generated at this time appears in the 1.0-1.2 V region.
  • the activation energy is, with a minimum of energy required to insert the magnesium Mo 6 S 8 0.6eV, Mo 6 Se 8 In may have a 0.4 eV.
  • the positive electrode active material is a single phase when the y value is 0 or 2, it is characterized in that the two phase when the y value is 0 to 2. That is, in the present invention, the positive electrode active material is characterized in that the phase change occurs in a single phase-> two phase-> single phase as the y value is changed from 0 to 2, that is, magnesium ions are inserted.
  • the single phase and when the y value is 0 to 2 the two phases belong to the R-3 space group of the rombohedral and have different lattice constants.
  • Rombohedral can be regarded as a cubic system of the form
  • the present invention also provides a magnesium secondary battery prepared by the present invention and including a magnesium cathode active material having a chevron structure whose particle size is controlled to a nano size.
  • the voltage of the magnesium secondary battery including the magnesium cathode active material of the Chevrel structure whose particle size is controlled by nano size according to the present invention is 1.0 to 1.2V.
  • Magnesium secondary battery according to the present invention includes a positive electrode, a negative electrode, a binder.
  • the positive electrode may further include a positive electrode active material, and a binder or a conductive material according to the present invention.
  • the conductive material may be used for anything used in the magnesium secondary battery.
  • Examples of the conductive material include carbon-based materials such as natural graphite, artificial graphite, carbon black, acetylene black, ketjen black, and carbon fiber; Metal powder or metal fibers such as copper, nickel, aluminum and silver; Conductive materials such as polyphenylene derivatives; Or combinations thereof.
  • the binder adheres well to the positive electrode active material particles, and also serves to adhere the positive electrode active material to the current collector.
  • Representative examples of the binder include polyvinyl alcohol, carboxymethyl cellulose, hydroxypropyl cellulose, diacetyl cellulose, polyvinyl chloride, carboxylated polyvinylchloride, polyvinyl fluoride, polymers including ethylene oxide, polyvinylpi Ralidone, polyurethane, polytetrafluoroethylene, polyvinylidene fluoride, polyethylene, polypropylene, styrene-butadiene rubber, acrylated styrene-butadiene rubber, epoxy resins, nylon or combinations thereof may be used.
  • the anode may be formed in a shape of the anode forming material itself, or the anode forming material is coated on a current collector such as copper foil, nickel foil, or stainless steel foil. It can manufacture by the method of doing.
  • the negative electrode may be at least one selected from the group consisting of a magnesium single material and an alloy containing magnesium.
  • the cathode may be a magnesium disk.
  • the magnesium secondary battery of the present invention further includes an electrolyte.
  • the electrolyte may be a magnesium ion-containing nonaqueous electrolyte.
  • the electrolyte may be a solution in which a magnesium salt such as Mg (AlCl 2 EtBu) 2 is dissolved in an organic solvent such as tetrahydrofuran (THF).
  • a magnesium salt such as Mg (AlCl 2 EtBu) 2
  • Et is an ethyl group
  • Bu is a butyl group.
  • the magnesium secondary battery may further include a separator that physically and electrically separates the positive electrode and the negative electrode from each other.
  • the separator may be one commonly used in magnesium batteries.
  • Such a separator may be a glass filter, polyester, teflon, polyethylene, polypropylene, polytetrafluoroethylene (PTFE) or a combination thereof.
  • PTFE polytetrafluoroethylene
  • such a separator may be in the form of a woven fabric or a nonwoven fabric.
  • the method for manufacturing a cathode active material for magnesium secondary battery according to the present invention not only prevents impurities from being formed even at a low temperature by adjusting the particle size when mixing the raw material compounds, and has a chevron structure cathode active material manufactured by the manufacturing method of the present invention. Insertion and desorption of silver magnesium ions is facilitated, thereby improving the diffusion of magnesium ions in the magnesium secondary battery.
  • FIG. 1 is a schematic diagram showing a method for producing a cathode active material for magnesium secondary battery according to the present invention.
  • Figure 2 shows the X-ray diffraction pattern of the positive electrode active material for magnesium secondary battery prepared according to an embodiment of the present invention.
  • Figure 3 shows a SEM photograph of the positive electrode active material for magnesium secondary battery prepared by one embodiment and comparative example of the present invention.
  • Figure 4 shows the charge and discharge curve of the magnesium secondary battery comprising a cathode active material for magnesium secondary battery prepared according to an embodiment and a comparative example of the present invention.
  • FIG. 5 is a graph illustrating output characteristics of a magnesium secondary battery including a cathode active material for magnesium secondary battery manufactured according to an embodiment and a comparative example of the present invention.
  • Cu, Mo element compound and S as X element were mixed as starting material A element compound, and it stirred at 480 rpm for 6 hours for High energy milling machine. Subsequently, the compound represented by Cu 2.5 Mo 6 S 8 was synthesized by placing it in a Swagelok reactor and heat-treating at 1100 ° C. for 24 hours in an argon (Ar) gas atmosphere. Thereafter, copper was desorbed from the Cu 2.5 Mo 6 S 8 using HCl as an oxidant to form Mo 6 S 8 particles.
  • Example 1 SEM pictures of the cathode active materials prepared in Example 1 and Comparative Example 1 were measured and the results are shown in FIG. 1.
  • the cathode active material of Comparative Example 1 had an average size of primary particles of 2 ⁇ m, whereas in Example 1, the size of primary particles was controlled to a nano size, that is, 500 nm or less.
  • a positive electrode including the active material of Mo 6 S 8 prepared in Example 1 and Comparative Example 1 was prepared.
  • Example 1 80 parts by weight of the positive electrode active material prepared in Example 1 and Comparative Example 1, 10 parts by weight of denca black as a conductive material and 10 parts by weight of polyvinylidene fluoride (PVDF) as a binder were mixed.
  • the mixture was dispersed in N-methyl-pyrrolidone (NMP) to prepare a slurry for positive electrode formation. Thereafter, the slurry was coated to a thickness of 70 ⁇ m on a stainless steel foil having a thickness of 10 ⁇ m, dried, and pressed at a compression ratio of 20-25% using a roll press machine at 120 ° C. to prepare a positive electrode.
  • NMP N-methyl-pyrrolidone
  • a coin cell was manufactured using a magnesium secondary battery positive electrode prepared in Example 2 and a magnesium disc and a separator as a negative electrode.
  • the coin cell prepared in Example 3 was initially charged and discharged three times, and the results are shown in FIG. 4.
  • Example 1 For the coin cell including the magnesium secondary battery positive electrode of Example 1 and Comparative Example 1 prepared in Example 3 by measuring the output characteristics to 0.05, 0.1, 0.2, 0.5, 1, 2, 5C The results are shown in FIG. 5.
  • the discharge capacity retention rate of Example 1 was 95.6% at 5C compared to the initial 0.05 C.
  • Comparative Example 1 55.3% was shown. From this, the primary particle size was controlled by the present invention, thereby significantly improving the output characteristics.
  • the method for producing a cathode active material for magnesium secondary battery according to the present invention not only prevents impurities from being formed even at low temperatures by controlling the particle size when mixing the raw material compounds, and is prepared by the method of the present invention.
  • the cathode active material of the Brel structure facilitates the insertion and removal of magnesium ions, thereby improving the diffusion of magnesium ions in the magnesium secondary battery.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)
PCT/KR2013/006489 2012-07-19 2013-07-19 Procédé permettant de préparer une matière active d'électrode positive destinée à une batterie rechargeable au magnésium et matière active d'électrode positive destinée à une batterie rechargeable au magnésium préparée au moyen dudit procédé Ceased WO2014014311A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20120078911 2012-07-19
KR10-2012-0078911 2012-07-19
KR10-2013-0085198 2013-07-19
KR1020130085198A KR101542838B1 (ko) 2012-07-19 2013-07-19 마그네슘 이차전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 마그네슘 이차전지용 양극활물질

Publications (1)

Publication Number Publication Date
WO2014014311A1 true WO2014014311A1 (fr) 2014-01-23

Family

ID=49949063

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2013/006489 Ceased WO2014014311A1 (fr) 2012-07-19 2013-07-19 Procédé permettant de préparer une matière active d'électrode positive destinée à une batterie rechargeable au magnésium et matière active d'électrode positive destinée à une batterie rechargeable au magnésium préparée au moyen dudit procédé

Country Status (1)

Country Link
WO (1) WO2014014311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111977692A (zh) * 2020-09-04 2020-11-24 陕西科技大学 一种作为高性能镁离子电池正极材料的类立方体形Mo6S8的制备方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110012005A (ko) * 2009-07-29 2011-02-09 한국에너지기술연구원 Ｍｇ 이차전지의 양극 활물질 제조용 ＣｕｘＭｏ6Ｓ8분말 제조방법

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20110012005A (ko) * 2009-07-29 2011-02-09 한국에너지기술연구원 Ｍｇ 이차전지의 양극 활물질 제조용 ＣｕｘＭｏ6Ｓ8분말 제조방법

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
LEVI, E: "Phase diagram of Mg insertion into chevrel phases, MgxMo6T8 (T = S, Se). 1.", CRYSTAL STRUCTURE OF THE SULFIDES, CHEMISTRY OF MATERIALS, vol. 18, 18 October 2006 (2006-10-18), pages 5492 - 5503 *
PANTOU, R: "Hot pressing sintered CuxMo6S8 targets for laser ablation thin films deposition", SOLID STATE SCIENCES, October 1991 (1991-10-01), pages 647 - 656 *
PARK, SUNG GYUN: "Crystal structural characterization of MgxMo6S8 (0<_x<_2) as the positive materials in Mg battery", CHUNGNAM NATIONAL UNIVERSITY LIBRARY, August 2006 (2006-08-01), pages 1,8 - 13,53 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111977692A (zh) * 2020-09-04 2020-11-24 陕西科技大学 一种作为高性能镁离子电池正极材料的类立方体形Mo6S8的制备方法

Similar Documents

Publication Publication Date Title
Fullenwarth et al. NiP 3: a promising negative electrode for Li-and Na-ion batteries
JP5642918B2 (ja) 金属ナノ結晶複合体を含む負極活物質、その製造方法及びそれを採用した負極とリチウム電池
KR100796687B1 (ko) 리튬 이차 전지용 활물질, 이의 제조방법 및 이를 포함하는 리튬 이차 전지
JP5290337B2 (ja) ガーネット型固体電解質、当該ガーネット型固体電解質を含む二次電池、及び当該ガーネット型固体電解質の製造方法
JP4954865B2 (ja) 改善された電気化学特性を有する負極活物質及びこれを含む電気化学素子
KR101378125B1 (ko) 리튬 이차 전지용 음극 활물질, 이의 제조 방법 및 이를 포함하는 리튬 이차 전지
WO2015005648A1 (fr) Matériau actif d&#39;anode pour batterie secondaire au lithium, composition pour anode le comprenant, et batterie secondaire au lithium
US20240379961A1 (en) Core-shell cathode lithium-supplementing additive, preparation method therefor and application thereof
WO2015065095A1 (fr) Matériau actif d&#39;électrode négative pour un accumulateur au lithium et son procédé de préparation
CN112385061B (zh) 硫化铁的制备方法、包含由其制备的硫化铁的锂二次电池用正极、和包含所述正极的锂二次电池
KR20160081692A (ko) 실리콘계 음극 활물질, 이의 제조방법, 상기 실리콘계 음극 활물질을 포함하는 음극 및 상기 음극을 포함하는 리튬 이차전지
WO2017029692A1 (fr) Matériau de carbone contenant de l&#39;oxygène revêtu de graphène poreux pour anode haute capacité à charge rapide de batterie au lithium-ion
WO2012067298A1 (fr) Matière active d&#39;anode destinée à une batterie rechargeable au lithium dotée de nanoparticules de silicium et batterie rechargeable au lithium comprenant celle-ci
KR20090105786A (ko) ｎ차 계층 구조를 갖는 리튬-전이 금속 복합 화합물, 이의 제조 방법 및 이를 포함한 전극을 구비한 리튬 전지
CN115483369A (zh) 二次电池用负极活性物质及其制备方法
CN110998918B (zh) 制备磷化铁的方法、包含磷化铁的锂二次电池用正极和包含所述正极的锂二次电池
CN114275828B (zh) 富镍材料及其制备方法、正极片、电池及用电设备
JP5187658B2 (ja) 全固体リチウム二次電池
WO2014081269A1 (fr) Précurseur de matériau actif d&#39;électrode recouvert de métal, et son procédé de préparation
KR101542838B1 (ko) 마그네슘 이차전지용 양극활물질의 제조 방법 및 이에 의하여 제조된 마그네슘 이차전지용 양극활물질
CN115360335B (zh) 一种基于钨碳基底双金属单原子催化剂的锂硫电池正极材料及其制备方法
CN113614948A (zh) 正极材料和电池
WO2014014311A1 (fr) Procédé permettant de préparer une matière active d&#39;électrode positive destinée à une batterie rechargeable au magnésium et matière active d&#39;électrode positive destinée à une batterie rechargeable au magnésium préparée au moyen dudit procédé
CN111162259A (zh) 铜包覆多孔硅复合材料的制备方法及用于锂离子电池的复合电极
WO2015008942A1 (fr) Méthode de fabrication de matériau d&#39;électrode positive pour batterie rechargeable au magnésium et matériau d&#39;électrode positive pour batterie rechargeable au magnésium fabriqué grâce à celle-ci

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 13820067

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 13820067

Country of ref document: EP

Kind code of ref document: A1