CN203812973U - Positive electrode current collector of lithium thionyl chloride battery - Google Patents
Positive electrode current collector of lithium thionyl chloride battery Download PDFInfo
- Publication number
- CN203812973U CN203812973U CN201420065154.4U CN201420065154U CN203812973U CN 203812973 U CN203812973 U CN 203812973U CN 201420065154 U CN201420065154 U CN 201420065154U CN 203812973 U CN203812973 U CN 203812973U
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- core bar
- steel core
- cover plate
- current collector
- 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.)
- Expired - Lifetime
Links
- SOZVEOGRIFZGRO-UHFFFAOYSA-N [Li].ClS(Cl)=O Chemical compound [Li].ClS(Cl)=O SOZVEOGRIFZGRO-UHFFFAOYSA-N 0.000 title abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 70
- 239000010935 stainless steel Substances 0.000 claims abstract description 70
- 239000011521 glass Substances 0.000 claims abstract description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 13
- 229910052744 lithium Inorganic materials 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 229910052759 nickel Inorganic materials 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 3
- 239000007774 positive electrode material Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000010923 batch production Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Cell Electrode Carriers And Collectors (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model provides a positive electrode current collector of a lithium thionyl chloride battery. The current collector comprises a stainless steel cover plate, a stainless steel core rod and a glass seal, wherein the stainless steel core rod passes through the stainless steel cover plate, the glass seal is arranged between the stainless steel cover plate and the stainless steel core rod, and wing-shaped current collecting blades are arranged on the outer side of the stainless steel core rod in the axial direction. The bottoms of the current collecting blades are in wedge shapes to enable the top end of the current collector to form a structure similar to a pyramid, so that the damage to a shaped positive electrode is reduced. Through the adoption of the current collector provided by the utility model, the wing-shaped current collecting blades are arranged on the outer side of the core rod, the current collecting blades are uniformly dispersed around the core rod, the electrons generated by the reaction in each area in the battery can be uniformly and easily collected, so that the contact area of the current collector and a positive electrode material is increased, the transferring distance of the electrons is shortened, the discharge capacity, especially the large current discharge capacity, is improved, and the consistency of batteries during the mass production process can be improved.
Description
Technical field
The utility model belongs to the sub-battery production of lithium and manufactures field, is specifically related to the sub-battery plus plate current-collecting body of a kind of lithium.
Background technology
Plus plate current-collecting body that lithium thionyl chloride cell uses at present, mainly contains cover plate, core bar, glass envelope and 1 stainless (steel) wire spot welding composition.On core bar, spot welding steel mesh has reduced the internal resistance of cell, but concerning overall performance, for the inside active matter only with some volumes, can not be from more this solves reduction internal resistance, improves discharge capacity, especially heavy-current discharge capacity.
Utility model content
For above-mentioned technical problem, the utility model provides a kind of lithium sub-battery plus plate current-collecting body, efficiently solves lithium thionyl chloride cell heavy-current discharge capacity and homogeneity of product problem.
The utility model provides a kind of lithium sub-battery plus plate current-collecting body, comprise stainless steel cover plate, stainless steel core bar and glass insulation envelope, stainless steel core bar is through stainless steel cover plate centre bore, glass envelope is arranged between stainless steel cover plate and stainless steel core bar, play the effect of cover plate and the insulation of stainless steel core bar and sealing, stainless steel cover plate is fixedly connected with glass insulation envelope with stainless steel core bar, and stainless steel core bar outside is in axial direction gone up and is evenly provided with multiple afflux blades that have wing shape.
Described afflux blade bottom is wedge shape, makes collector top form the structure that is similar to pyramid, reduces the destruction to moulding positive pole.
Described afflux blade has 4 and be evenly arranged at the outside of stainless steel core bar, and good reduction internal resistance increases the conductive capability of collector, has improved discharge capacity of the cell, increases homogeneity of product.
Described afflux blade is nickel, stainless steel or stainless steel nickel plating, increases the conductivity of stainless steel core bar.
Described afflux blade and integrated connection outside stainless steel core bar.Between described 2 afflux blades, arrange and connecting plate, described connecting plate is welded in stainless steel core bar outside.The utility model can be adjusted according to Production requirement the set-up mode of afflux blade.
Described afflux blade body is netted or sheet.The utility model can be adjusted according to Production requirement the shape of afflux blade.
The utility model is by the afflux blade core bar arranged outside wing shape, to comparatively uniformly collector be dispersed in to core bar surrounding, can very evenly be easier to collect the each region of inside battery and react the electronics producing, increase the contact area of collector and positive electrode, reduce electronics and transmitted distance, improved discharge capacity, especially heavy-current discharge capacity, can improve the consistency in battery batch production process.Described afflux blade bottom is wedge shape, makes collector top form the structure that is similar to pyramid, reduces the destruction to moulding positive pole.Afflux blade shape of the present utility model and mounting means can be adjusted according to need of production, meet the different market demands.
Brief description of the drawings
Fig. 1 is the schematic diagram of specific embodiment 1
Fig. 2 is the schematic diagram of specific embodiment 2
Fig. 3 is afflux blade schematic diagram
Wherein, 1-stainless steel cover plate, 2-stainless steel core bar, 3-afflux blade, 4-glass insulation envelope, 31-connecting plate.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the utility model is described in further detail:
The utility model provides a kind of lithium sub-battery plus plate current-collecting body, comprise stainless steel cover plate 1, stainless steel core bar 2 and glass insulation envelope 4, stainless steel core bar 2 is through stainless steel cover plate 1 and glass insulation envelope 4, glass insulation envelope 4 is arranged between stainless steel cover plate 1 and stainless steel core bar 2, stainless steel cover plate 1 is fixedly connected with glass insulation envelope 4 with stainless steel core bar 2, and the afflux blade 3 that is evenly provided with multiple wing shapes is in axial direction gone up in stainless steel core bar 2 outsides.Described afflux blade 3 bottoms are carves shape.Described afflux blade 3 has 4 and be evenly arranged at the outside of stainless steel core bar 2.Described afflux blade 3 is nickel, stainless steel or stainless steel nickel plating.Described afflux blade 3 and integrated connection of stainless steel core bar 2 outsides.Between described 2 afflux blades 3, arrange and connecting plate 31, described connecting plate 31 is welded in stainless steel core bar 2 outsides.Described afflux blade 3 bodies are netted or sheet.
As shown in Figure 1, in specific embodiment 1, the body of rod of stainless steel core bar 2 outside is in axial direction gone up and is evenly provided with 4 afflux blades 3, described afflux blade all with integrated connection of the body of rod of stainless steel core bar 2.The bottom of described afflux blade 3 is wedge shape, and the bottom of the bottom of afflux blade 3 and stainless steel core bar 2 is in same level or omit height a bit, and the top of afflux blade 3 is positioned at the below of stainless steel cover plate 1.Described afflux blade 2 is sheet.The internal diameter of stainless steel cover plate intermediate throughholes is greater than the external diameter of stainless steel core bar 2, stainless steel core bar 2 has very large gap after penetrating the middle sky of stainless steel cover plate 1, glass envelope 4 is just filled in this gap, thereby stainless steel core bar 2 and stainless steel cover plate 1 are fixed into an entirety, separate stainless steel cover plate 1 and stainless steel core bar 2 and reach both positive and negative polarity and insulate and sealing function thereby also play because having filled this gap simultaneously.
As shown in Figure 2,3, in specific embodiment 2, the body of rod of stainless steel core bar 2 outside is in axial direction gone up and is evenly provided with 4 afflux blades 3, and wherein 4 afflux blades are divided into 2 groups, and 2 afflux blades 3 in every group connect by connecting plate 31.The inside edge of afflux blade 3 is welded in the both sides of connecting plate 31, between afflux blade 3 and connecting plate 31, forms obtuse angle.Described obtuse angle is 135 degree.Described afflux blade 2 is sheet.The bottom of connecting plate 31 is cone-shaped.Connecting plate 31 is welded in the outside of stainless steel core bar 2 by the mode of spot welding.In specific embodiment 2, the connected mode of stainless steel core bar 2 and stainless steel cover plate 1 and glass envelope 4 is identical with specific embodiment 1.
Make ER26500 energy type battery, then use respectively on core bar spot welding steel mesh and use this to use novel afflux leaf to make, battery battery core discharge capacity is as follows:
Find out from upper form, no matter which kind of discharging current is all in the discharge capacity of existing current collection mode for the novel described collector discharge capacity of this use, and consistency is better.
The utility model is dispersed in afflux blade 3 body of rod surrounding of stainless steel core bar 2 comparatively uniformly, can very evenly be easier to collect the each region of inside battery and react the electronics producing, increase the contact area of collector and positive electrode, reduce electronics and transmitted distance, improve discharge capacity, especially heavy-current discharge capacity, can improve the consistency in battery batch production process.
Obviously, those skilled in the art can carry out various changes and modification and not depart from spirit and scope of the present utility model the utility model.Like this, if these amendments of the present utility model and within modification belongs to the scope of the utility model claim and equivalent technologies thereof, the utility model is also intended to comprise these changes and modification interior.The content not being described in detail in this specification belongs to the known prior art of professional and technical personnel in the field.
Claims (7)
1. the sub-battery plus plate current-collecting body of lithium, comprise stainless steel cover plate, stainless steel core bar and glass insulation envelope, stainless steel core bar is through stainless steel cover plate and glass insulation envelope, glass insulation envelope is arranged between stainless steel cover plate and stainless steel core bar, stainless steel cover plate is fixedly connected with stainless steel core bar with glass insulation envelope, it is characterized in that in axial direction going up the afflux blade that is evenly provided with multiple wing shapes outside stainless steel core bar.
2. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that described afflux blade bottom is wedge shape.
3. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that described afflux blade has 4 and be evenly arranged at the outside of stainless steel core bar.
4. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that described afflux blade is nickel, stainless steel or stainless steel nickel plating.
5. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that described afflux blade and integrated connection outside stainless steel core bar.
6. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that being provided with connecting plate between described 2 afflux blades, and described connecting plate is welded in stainless steel core bar outside.
7. the sub-battery plus plate current-collecting body of lithium according to claim 1, is characterized in that described afflux blade body is netted or sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065154.4U CN203812973U (en) | 2014-02-14 | 2014-02-14 | Positive electrode current collector of lithium thionyl chloride battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065154.4U CN203812973U (en) | 2014-02-14 | 2014-02-14 | Positive electrode current collector of lithium thionyl chloride battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812973U true CN203812973U (en) | 2014-09-03 |
Family
ID=51451691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065154.4U Expired - Lifetime CN203812973U (en) | 2014-02-14 | 2014-02-14 | Positive electrode current collector of lithium thionyl chloride battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812973U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482235A (en) * | 2017-07-12 | 2017-12-15 | 烟台科达石油科技有限公司 | A kind of lithium thionyl chloride cell and preparation method thereof |
| CN110767876A (en) * | 2019-12-02 | 2020-02-07 | 蚌埠市立群电子有限公司 | A welding flat pin cover group for cylindrical lithium battery |
-
2014
- 2014-02-14 CN CN201420065154.4U patent/CN203812973U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482235A (en) * | 2017-07-12 | 2017-12-15 | 烟台科达石油科技有限公司 | A kind of lithium thionyl chloride cell and preparation method thereof |
| CN107482235B (en) * | 2017-07-12 | 2019-05-03 | 烟台科达石油科技有限公司 | A kind of lithium-thionyl chloride battery and preparation method thereof |
| CN110767876A (en) * | 2019-12-02 | 2020-02-07 | 蚌埠市立群电子有限公司 | A welding flat pin cover group for cylindrical lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |