CN203812984U - Lithium battery with high voltage and large capacity - Google Patents
Lithium battery with high voltage and large capacity Download PDFInfo
- Publication number
- CN203812984U CN203812984U CN201420093303.8U CN201420093303U CN203812984U CN 203812984 U CN203812984 U CN 203812984U CN 201420093303 U CN201420093303 U CN 201420093303U CN 203812984 U CN203812984 U CN 203812984U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- material layer
- composite
- lithium battery
- high voltage
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 claims abstract description 36
- 230000004888 barrier function Effects 0.000 claims description 13
- 239000005030 aluminium foil Substances 0.000 claims description 12
- 239000007773 negative electrode material Substances 0.000 claims description 9
- 239000007774 positive electrode material Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 4
- 229910052782 aluminium Inorganic materials 0.000 abstract 4
- 239000011888 foil Substances 0.000 abstract 4
- 239000010405 anode material Substances 0.000 abstract 2
- 239000010406 cathode material Substances 0.000 abstract 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910010707 LiFePO 4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation 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
-
- 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
Landscapes
- Battery Electrode And Active Subsutance (AREA)
- Secondary Cells (AREA)
Abstract
The utility model discloses a lithium battery with high voltage and large capacity. The lithium battery comprises electric cores which are formed by continuously overlaying a pole piece group in a Z-shaped manner, an anode lug and a cathode lug, wherein the anode lug and the cathode lug are led from the electric cores; round head wedges are placed on the inner sides of the corners of the pole piece group; the pole piece group consists of a starting pole piece, a finishing pole piece, a plurality of composite pole pieces, and a plurality of diaphragms, which are stacked; the composite pole pieces are located between the starting pole piece and the finishing pole piece; the starting pole piece is an aluminum foil of which one surface is coated with an anode material layer; the finishing pole piece is an aluminum foil of which one surface is coated with a cathode material layer, and the composite pole pieces are aluminum foils, and the front and the back of each aluminum foil are respectively coated with an anode material layer and a cathode material layer. A plurality of layers of the pole pieces and the diaphragms are overlapped and continuously overlaid in the Z-shaped manner, and the capacity of battery can be changed by changing number and width of Z-shaped overlaid layers, so that the production of the large-capacity lithium battery is realized; the round head wedges are placed at the corners of the pole piece group, so that damage of the battery pole pieces at the corners is avoided.
Description
[technical field]
The utility model relates to the technical field of lithium battery, particularly the technical field of high voltage large capcity lithium battery.
[background technology]
A kind of production method of high-voltage battery has been proposed in application for a patent for invention numbers 2013106351168 (a kind of high-voltage lithium ion batteries and preparation method thereof), but because it is formed by stacking with multiple composite pole pieces and barrier film, the capacity of this high-voltage battery depends on the dressing amount of active material on the area of every pole piece and this area, if the dressing amount of unit are is too large, will inevitably affect the charge-discharge performance of battery, therefore the capacity of the battery that the effective area of every composite pole piece determines.And adopting the method production technology superposeing, every composite pole piece can not be too large, otherwise cannot operate.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, a kind of high voltage large capcity lithium battery is proposed, multilayer pole piece and the overlapping rear employing Z-shaped of barrier film are superposeed continuously, the number of plies of stack is odd number, the length that guarantees every pole piece from face is consistent, can change the number of plies of Z-shaped stack and the size that width changes battery capacity, and in pole piece group corner, place round end voussoir, guarantee that battery pole piece does not damage when corner.
For achieving the above object, the utility model proposes a kind of high voltage large capcity lithium battery, comprise anode ear and the negative electrode lug of in the battery core that adopted Z-shaped to superpose continuously to form by pole piece group and battery core, drawing, described pole piece group on the corner inner side is placed with round end voussoir, described pole piece group is by playing starting sheet, finish pole piece, some composite pole pieces form and some barrier films stack composition, composite pole piece is playing starting sheet and is finishing between pole piece, described starting sheet is the aluminium foil that one side scribbles positive electrode material layer, described end pole piece is the aluminium foil that one side scribbles negative electrode material layer, described composite pole piece is the aluminium foil that positive and negative scribbles respectively positive electrode material layer and negative electrode material layer.
As preferably, between described starting sheet and composite pole piece, between composite pole piece and composite pole piece, finish to be all placed with barrier film between pole piece and composite pole piece.
As preferably, described starting sheet, the surrounding that finishes pole piece and composite pole piece all scribble sealant layer, one side and playing a starting sheet, finish pole piece and composite pole piece all leave fluid injection ditch.
As preferably, the thickness of described aluminium foil is 0.01～0.06mm, and the thickness of positive electrode material layer and negative electrode material layer is 0.10～0.50mm, and the quantity of barrier film is 4～60.
As preferably, the folding number of plies of described pole piece group is odd number layer, and the thickness of pole piece group is 2～10mm, and the width of pole piece group is 100～600mm, and the width of the battery core forming after pole piece group is folding is 10～500mm.
The beneficial effects of the utility model: the utility model is by superposeing multilayer pole piece and the overlapping rear employing Z-shaped of barrier film continuously, the number of plies of stack is odd number, the length that guarantees every pole piece from face is consistent, can change the number of plies of Z-shaped stack and the size that width changes battery capacity, realize the production of high-capacity lithium battery, and in pole piece group corner, place round end voussoir, guarantee that battery pole piece does not damage when corner.
Feature of the present utility model and advantage will be elaborated by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the top plan view of battery core in the utility model;
Fig. 2 is the top plan view of pole piece group in the utility model;
Fig. 3 is the main pseudosection of composite pole piece in the utility model;
Fig. 4 is the left pseudosection of composite pole piece in the utility model.
[embodiment]
Consult Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of high voltage large capcity lithium battery of the utility model, comprise anode ear 21 and the negative electrode lug 22 of in the battery core 2 that adopted Z-shaped to superpose continuously to form by pole piece group 1 and battery core 2, drawing, described pole piece group 1 on the corner inner side is placed with round end voussoir 3, described pole piece group 1 is by playing starting sheet 4, finish pole piece 5, some composite pole pieces 6 form and some barrier films 7 stack composition, composite pole piece 6 is playing starting sheet 4 and is finishing between pole piece 5, described starting sheet 4 scribbles the aluminium foil 83 of positive electrode material layer 81 for one side, described end pole piece 5 scribbles the aluminium foil 83 of negative electrode material layer 82 for one side, described composite pole piece 6 is the aluminium foil 83 that positive and negative scribbles respectively positive electrode material layer 81 and negative electrode material layer 82, between described starting sheet 4 and composite pole piece 6, between composite pole piece 6 and composite pole piece 6, finish to be all placed with barrier film 7 between pole piece 5 and composite pole piece 6, described starting sheet 4, the surrounding that finishes pole piece 5 and composite pole piece 6 all scribbles sealant layer 91, and playing starting sheet 4, finish one side of pole piece 5 and composite pole piece 6 and all leave fluid injection ditch 92, the thickness of described aluminium foil 83 is 0.01～0.06mm, the thickness of positive electrode material layer 81 and negative electrode material layer 82 is 0.10～0.50mm, the quantity of barrier film 7 is 4～60, the folding number of plies of described pole piece group 1 is odd number layer, the thickness of pole piece group 1 is 2～10mm, the width of pole piece group 1 is 100～600mm, the width of the battery core 2 forming after pole piece group 1 is folding is 10～500mm.
The utility model course of work:
A kind of high voltage large capcity lithium battery of the utility model in the course of the work, to play starting sheet 4, composite pole piece 6 and end pole piece 5 superpose continuously and form battery core 2 with the overlapping rear employing Z-shaped of barrier film 7, the number of plies of stack is odd number, the length that guarantees every pole piece from face is consistent, can change the number of plies of Z-shaped stack and the size that width changes battery capacity, realize the production of high-capacity lithium battery, and in pole piece group corner, place round end voussoir 3, assurance pole piece group 1 is not damaged when corner, battery core 2 after Z-shaped stack is by drawing one or more anode ear 21 and negative electrode lug 22, then through sealing, fluid injection, be packaged into shell, after changing into, become high voltage large capcity lithium ion battery, directly can use, this anode utilizes cobalt acid lithium, LiMn2O4, ternary material or LiFePO 4 material, negative pole adopts lithium titanate, therefore this battery security is good, have extended cycle life.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, any scheme after the utility model simple transformation is all belonged to protection range of the present utility model.
Claims (5)
1. a high voltage large capcity lithium battery, it is characterized in that: comprise anode ear (21) and the negative electrode lug (22) of in the battery core (2) that adopted Z-shaped to superpose continuously to form by pole piece group (1) and battery core (2), drawing, described pole piece group (1) on the corner inner side is placed with round end voussoir (3), described pole piece group (1) is by playing starting sheet (4), finish pole piece (5), some composite pole pieces (6) form and some barrier films (7) stack composition, composite pole piece (6) has been positioned at starting sheet (4) and has finished between pole piece (5), described starting sheet (4) scribbles the aluminium foil (83) of positive electrode material layer (81) for one side, described end pole piece (5) scribbles the aluminium foil (83) of negative electrode material layer (82) for one side, described composite pole piece (6) is the aluminium foil (83) that positive and negative scribbles respectively positive electrode material layer (81) and negative electrode material layer (82).
2. a kind of high voltage large capcity lithium battery as claimed in claim 1, is characterized in that: between described starting sheet (4) and composite pole piece (6), between composite pole piece (6) and composite pole piece (6), finish to be all placed with barrier film (7) between pole piece (5) and composite pole piece (6).
3. a kind of high voltage large capcity lithium battery as claimed in claim 1, it is characterized in that: described starting sheet (4), the surrounding that finishes pole piece (5) and composite pole piece (6) all scribble sealant layer (91), and play a starting sheet (4), end pole piece (5) and composite pole piece (6) one side all leave fluid injection ditch (92).
4. a kind of high voltage large capcity lithium battery as claimed in claim 1, it is characterized in that: the thickness of described aluminium foil (83) is 0.01～0.06mm, the thickness of positive electrode material layer (81) and negative electrode material layer (82) is 0.10～0.50mm, and the quantity of barrier film (7) is 4～60.
5. a kind of high voltage large capcity lithium battery as described in any one in claim 1 to 4, it is characterized in that: the folding number of plies of described pole piece group (1) is odd number layer, the thickness of pole piece group (1) is 2～10mm, the width of pole piece group (1) is 100～600mm, and the width of the battery core (2) forming after pole piece group (1) is folding is 10～500mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093303.8U CN203812984U (en) | 2014-03-03 | 2014-03-03 | Lithium battery with high voltage and large capacity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420093303.8U CN203812984U (en) | 2014-03-03 | 2014-03-03 | Lithium battery with high voltage and large capacity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812984U true CN203812984U (en) | 2014-09-03 |
Family
ID=51451702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420093303.8U Expired - Lifetime CN203812984U (en) | 2014-03-03 | 2014-03-03 | Lithium battery with high voltage and large capacity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812984U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374032A (en) * | 2020-12-30 | 2022-04-19 | 北京卫蓝新能源科技有限公司 | Tab-free lithium battery core, tab-free lithium battery core module and electric automobile |
-
2014
- 2014-03-03 CN CN201420093303.8U patent/CN203812984U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114374032A (en) * | 2020-12-30 | 2022-04-19 | 北京卫蓝新能源科技有限公司 | Tab-free lithium battery core, tab-free lithium battery core module and electric automobile |
| CN114374032B (en) * | 2020-12-30 | 2023-12-26 | 北京卫蓝新能源科技有限公司 | Electrodeless ear lithium battery core, electrodeless ear lithium battery core module and electric automobile |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG XINGHAI ENERGY TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: XU AOKUI Effective date: 20150520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150520 Address after: 313100 No. 1346 Taihu Avenue, Changxing County economic and Technological Development Zone, Zhejiang Patentee after: ZHEJIANG XINGHAI ENERGY TECHNOLOGY Co.,Ltd. Address before: 313100 Zhejiang city of Huzhou province Changxing County economic and Technological Development Zone Taihu Road No. 1346 Zhejiang Xinghai Energy Technology Co. Patentee before: Xu Aokui |
|
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 313100 Changxin Economic Development Zone, Zhejiang, Huzhou Patentee after: ZHEJIANG XINGHAI ENERGY TECHNOLOGY Co.,Ltd. Address before: 313100 No. 1346 Taihu Avenue, Changxing County economic and Technological Development Zone, Zhejiang Patentee before: Zhejiang Xinghai Energy Technology Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |
|
| CX01 | Expiry of patent term |