CN1402373A - Zinc-bromine battery with non-circulating electrolyte - Google Patents
Zinc-bromine battery with non-circulating electrolyte Download PDFInfo
- Publication number
- CN1402373A CN1402373A CN01123978A CN01123978A CN1402373A CN 1402373 A CN1402373 A CN 1402373A CN 01123978 A CN01123978 A CN 01123978A CN 01123978 A CN01123978 A CN 01123978A CN 1402373 A CN1402373 A CN 1402373A
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- CN
- China
- Prior art keywords
- battery
- zinc
- bromine
- electrode
- electrolyte
- 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.)
- Pending
Links
- 239000003792 electrolyte Substances 0.000 title claims abstract description 29
- ZRXYMHTYEQQBLN-UHFFFAOYSA-N [Br].[Zn] Chemical compound [Br].[Zn] ZRXYMHTYEQQBLN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229920003023 plastic Polymers 0.000 claims abstract description 28
- 239000004033 plastic Substances 0.000 claims abstract description 28
- 239000000178 monomer Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 claims description 13
- 230000001413 cellular effect Effects 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000639 Spring steel Inorganic materials 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000013078 crystal Substances 0.000 abstract 1
- 210000004027 cell Anatomy 0.000 description 6
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 230000022131 cell cycle Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000007772 electrode material Substances 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 229920002457 flexible plastic Polymers 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Classifications
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- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Hybrid Cells (AREA)
Abstract
The zinc-bromine battery without circulating flow of electrolyte mainly includes positive electrode bag, negative electrode bag, electrolyte and microporous plastic diaphragm preventing dendritic crystal. The electrode is enclosed by the microporous plastic diaphragm or the microporous plastic diaphragm with enclosed periphery and the conducting strip. The alternately arranged positive and negative electrode groups are arranged in a closed soft plastic box or a plastic bag with a pressure release valve to form a battery monomer, or a bipolar electrode structure can be adopted to form the battery. All the positive electrode packs and the negative electrode packs are tightly contacted through pressurization and fastening, and the whole battery is compact in structure and suitable for being used as a power battery of an electric vehicle.
Description
The present invention relates to a kind of zinc-bromine bettery that in discharging and recharging, flows without circulate electrolyte.
Known circular electrolyte zinc-bromine bettery drives electrolyte with circulating pump and constantly circulates in the battery cavity when discharging and recharging work.Electrolyte was not extracted out from the battery cavity when battery was not worked, and was stored in the hopper, made to realize between the inside battery both positive and negative polarity that electrolyte opens circuit, and can prevent that anodal Charging state bromine is diffused into negative pole and directly chemical reaction takes place and cause self discharge.The zinc dendrite growth was passed barrier film and is made the both positive and negative polarity short circuit when circular electrolyte can also prevent to charge simultaneously.Patent EP-B
1O167517, CN1087209A, CN1065556A etc. are exactly this class circular electrolyte zinc-bromine bettery.
Because the circular electrolyte zinc-bromine bettery needs the required equipment of electrolyte circulation system such as circulating pump, motor, hopper, these battery auxiliary equipment make zinc-bromine bettery than existing other common rechargeable battery complex structures, and because the volume and weight of equipment such as circulating pump is difficult to make zinc-bromine bettery to make compact battery as other batteries.The more important thing is, during the work of circular electrolyte zinc-bromine bettery, inhomogeneous liquid stream can appear in electrolyte that circulating pump drives inevitably in the battery cavity, make and produce changeable unbalanced tensile force in the battery cavity, this unbalanced tensile force can produce destruction to the inside battery structure, thereby influences battery cycle life.
The objective of the invention is according to the work characteristics of electric automobile power battery and electric automobile provides stable performance, the Zinc-bromine bettery containing non-circulated electrolyte that the life-span is long to the basic demand of electrokinetic cell.
The work characteristics of electric automobile power battery is based on medium multiplying power discharging, quickens the big multiplying power discharging during climbing with starting.The electric automobile of frequent operation, especially the e-bus of all day every day operation, the electrokinetic cell cycle charge-discharge is frequent, the charge and discharge cycles cycle is short, make electrokinetic cell operate as normal for a long time, battery must have sufficiently long cycle life, and its requirement is more much higher in other application scenarios than battery.Zinc-bromine bettery two top electrodes all adopt the material with carbon element of electrochemical stability, both positive and negative polarity does not cause the variation of Charging state and discharge attitude physical form in discharging and recharging for a long time, cycle life is long especially, there is not the needed cavity structure of circular electrolyte in the Zinc-bromine bettery containing non-circulated electrolyte, can not produce destruction to battery because unbalanced tensile force in the battery inner chamber given birth to by circular electrolyte non-uniform flow movable property, this Zinc-bromine bettery containing non-circulated electrolyte can ensure the original life of zinc-bromine bettery, thereby has guaranteed the requirement of electric automobile to electrokinetic cell cycle life.
The present invention is achieved like this: adopt anti-dendrite cellular plastic barrier film that both positive and negative polarity is separated between both positive and negative polarity, plastic diaphragms can allow electrolyte freely to pass through, but the Charging state bromine is played inhibition by positive pole to the diffusion of negative pole, and inhibition Charging state bromine is diffused into negative pole and with negative pole Charging state zinc chemical reaction takes place directly and causes self discharge.Plastic diaphragms also plays a part to stop the zinc dendrite growth simultaneously.Electrode package is by collector body, the positive and negative electrode electrode active material be closed in the cellular plastic barrier film or be closed in conducting strip and the cellular plastic barrier film among, the strict sealing of electrode package periphery, the micropore of plastic diaphragms provides unique passage for electrolyte inside and outside electrode package.The electrode package of sealing is sealed by the battery case (bag) of band relief valve again.Relief valve has the dual-use function that can add liquid and can lose heart body concurrently.Pressurization is fastening between each electrode package and the barrier film.Be to guarantee the pressure state of electrode package mid portion, at the arc spring steel plate of battery pressurization two ends symmetry ground cushion belling in the battery.
The present invention does not have the circulating pump of cyclic electrolysis solution battery, and electrolyte circulation systems such as electro-motor, hopper do not have cavity structure in the battery, and entire cell is in impaction state, and battery structure is simple and compact.
The present invention should make the electrokinetic cell of electric motor car, particularly electric bus.
Concrete structure of the present invention is provided by following examples and accompanying drawing thereof.
Embodiment one
Figure one is the rectangular cell schematic diagram, electrode package is sealed by the cellular plastic barrier film, the positive pole bag of alternately arranging 1 is arranged in each monomer, negative pole bag 2, can put one deck barrier film 3 again between them, be placed in the sealing flexible plastic box (bag) 5 of band relief valve 4, electrolyte has liquid flow space all around outside the electrode package in plastic casing (bag).Electrodes conduct sheet 6 surfaces that are between electrode package and the plastic casing are covered and the electrolyte isolation by the electric insulation material.When forming battery pack, the adjacent side electrode positive-negative polarity of adjacent two monomers is preferably opposite.
Embodiment two
Figure two is a Zinc-bromine bettery containing non-circulated electrolyte bipolar electrode prismatic batteries profile, and figure three is an end view.
Tightly be bonded and sealed in bipolar electrode plate 1 periphery and between the periphery of adjacent plastic diaphragms 2, have liquid bath 3 to be in the two neighboring pole panel edges around each monomer.
The electrode slice edge plays a part fin to exposing outside, and battery top liquid feeding box 4 communicates by each plastic catheter 5 respectively with each monomer inside, and each plastic catheter upper end must exceed liquid feeding box (pipe) bottom.The lid 6 of charged pool relief valve is arranged at liquid feeding box top, and turning on lid can be by battery case to the battery liquid feeding.The liquid feeding box also can replace with thicker plastic catheter, and the plastics arm upper end that communicates with each cell is in thick plastics house steward's axis part.
Embodiment three
Figure four is cylindrical zinc-bromine bettery.Shown in both positive and negative polarity isolate with the layer 2-3 plastic diaphragms, and sweep across and tightly be loaded on the battery tube.Electrode and the tight bonding of adjacent barrier film periphery.
Strict sealing between battery upper plastic lid periphery and the battery tube, and have a pore to communicate with relief valve.
Claims (9)
1, a kind of zinc-bromine bettery, electrolyte need not circulate when discharging and recharging.Separate with anti-dendrite cellular plastic barrier film between the positive and negative electrode, electrode package and barrier film are in tight impaction state in the battery, battery be in the band relief valve closed system in.
2, zinc-bromine bettery as claimed in claim 1 is characterized in that, the positive and negative electrode bag is in the sealing of cellular plastic barrier film, or is in the sealing of conducting strip and cellular plastic barrier film, and unique passage of the inside and outside electrolyte of electrode package is the micropore of plastic diaphragms.
3, as the described zinc-bromine bettery of right 1-2, it is characterized in that, at the arc spring steel plate that the symmetrical ground cushion belling in the two ends of battery pressurization is faced in the battery.
As the described zinc-bromine bettery of right 1-3, it is characterized in that 4, the battery relief valve has the dual-use function that can add liquid and can lose heart body concurrently.
5, as the described zinc-bromine bettery of right 1-4, it is characterized in that the positive and negative electrode bag is sealed by the cellular plastic barrier film respectively, and the zinc-bromine bettery of alternately arranging, the electrodes conduct sheet surface that electrode package is outer and soft battery case (bag) is interior is covered by electric insulation, makes with electrolyte isolated.
6, as right 5 described zinc-bromine betteries, the adjacent side polarity of electrode of adjacent monomer is opposite when forming battery pack.
7, as the described zinc-bromine bettery of right 1-4, it is characterized in that the bipolarity zinc-bromine bettery has liquid feeding box (pipe) to communicate with each monomer periphery liquid bath, the plastic catheter upper end that links to each other is in the middle part of liquid feeding box or house steward's axis part.
As right 7 described zinc-bromine betteries, it is characterized in that 8, electrode metal sheet periphery has the marginal portion of exposing in the battery body can play fin.
As the described zinc-bromine bettery of right 1-4, it is characterized in that 9, the liquid feeding box and the peripheral liquid bath of cylindrical zinc-bromine bettery are integrated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01123978A CN1402373A (en) | 2001-08-10 | 2001-08-10 | Zinc-bromine battery with non-circulating electrolyte |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01123978A CN1402373A (en) | 2001-08-10 | 2001-08-10 | Zinc-bromine battery with non-circulating electrolyte |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1402373A true CN1402373A (en) | 2003-03-12 |
Family
ID=4665409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01123978A Pending CN1402373A (en) | 2001-08-10 | 2001-08-10 | Zinc-bromine battery with non-circulating electrolyte |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1402373A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628719A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院大连化学物理研究所 | A high areal capacity zinc-bromine single-flow battery |
| CN116598605A (en) * | 2023-07-17 | 2023-08-15 | 江苏恒安储能科技有限公司 | Diaphragm-free colloid zinc-bromine battery |
-
2001
- 2001-08-10 CN CN01123978A patent/CN1402373A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114628719A (en) * | 2020-12-11 | 2022-06-14 | 中国科学院大连化学物理研究所 | A high areal capacity zinc-bromine single-flow battery |
| CN114628719B (en) * | 2020-12-11 | 2023-12-22 | 中国科学院大连化学物理研究所 | High-capacity zinc-bromine single flow battery |
| CN116598605A (en) * | 2023-07-17 | 2023-08-15 | 江苏恒安储能科技有限公司 | Diaphragm-free colloid zinc-bromine battery |
| CN116598605B (en) * | 2023-07-17 | 2023-11-03 | 江苏恒安储能科技有限公司 | A separator-less colloidal zinc-bromine battery |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |