CN203932227U - A kind of lithium ion battery - Google Patents
A kind of lithium ion battery Download PDFInfo
- Publication number
- CN203932227U CN203932227U CN201420103251.8U CN201420103251U CN203932227U CN 203932227 U CN203932227 U CN 203932227U CN 201420103251 U CN201420103251 U CN 201420103251U CN 203932227 U CN203932227 U CN 203932227U
- Authority
- CN
- China
- Prior art keywords
- positive
- insulation spacer
- core bag
- negative
- lithium ion
- 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 - Fee Related
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 11
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 22
- 125000006850 spacer group Chemical group 0.000 claims abstract description 21
- 229920002799 BoPET Polymers 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 10
- 239000002985 plastic film Substances 0.000 claims abstract description 7
- 229920006255 plastic film Polymers 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 6
- 230000004888 barrier function Effects 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000003466 welding Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 239000006258 conductive agent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052493 LiFePO4 Inorganic materials 0.000 description 1
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 description 1
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 230000001681 protective 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
-
- 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
- Connection Of Batteries Or Terminals (AREA)
Abstract
A lithium ion battery, comprises housing, is provided with core bag in described housing, and described core bag is rearranged by the square electric cell unit of some coiling and moldings, and each top, battery core unit is provided with anode ear and negative electrode lug, between described battery core unit for being connected in parallel; Described core bag top is provided with insulation spacer, bottom is provided with lower insulation spacer, described upper insulation spacer is provided with some bar holes that supply anode ear and negative electrode lug to pass, described upper insulation spacer is provided with cover plate, described cover plate is provided with positive and negative output stage, and described positive and negative lug welds with positive and negative output stage respectively; Described core bag is for being enclosed with PET film, and described PET film is wrapped with aluminum plastic film.On the basis promoting at capacity, use safer.
Description
Technical field
The utility model relates to lithium ion battery.
Background technology
Energy shortage is day by day serious in recent years, and along with highlighting of the problems such as soaring and air pollution of oil price, countries in the world have stepped up to develop other alternative energy sources.Demand based on applications such as electric automobile, base station, energy storage, more and more higher to the requirement of lithium-ion battery monomer capacity, from several ampere-hours before ampere-hours up to a hundred till now.The lifting of capacity, must propose higher requirement to the production of battery, safety etc.
Summary of the invention
Technical problem to be solved in the utility model is to provide lithium ion battery, on the basis promoting, uses safer at capacity.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of lithium ion battery, comprise housing, in described housing, be provided with core bag, described core bag is rearranged by the square electric cell unit of some coiling and moldings, each top, battery core unit is provided with anode ear and negative electrode lug, between described battery core unit for being connected in parallel; Described core bag top is provided with insulation spacer, bottom is provided with lower insulation spacer, described upper insulation spacer is provided with some bar holes that supply anode ear and negative electrode lug to pass, described upper insulation spacer is provided with cover plate, described cover plate is provided with positive and negative output stage, and described positive and negative lug welds with positive and negative output stage respectively; Described core bag is for being enclosed with PET film, and described PET film is wrapped with aluminum plastic film.In the utility model housing, a plurality of battery cores unit, consist of, the original battery core of coiling Length Ratio of each battery core unit is short, has shortened like this length of each battery core pole piece, is convenient to reel produce, and many battery cores parallel connection simultaneously can reduce internal resistance, improves heavy-current discharge performance.The positive and negative lug of each battery core unit is with the welding in parallel with cover plate output stage of hyperacoustic mode, and core bag top and bottom are lined with insulation spacer, play the insulating effect of lug and core bag, core bag and housing; Upper insulation spacer has some bar holes, so that positive and negative lug draws respectively, and can not contact with core bag, prevents short circuit.Core bag outside is surrounded by PET film and aluminum plastic film, plays the insulating effect with housing, and alleviates the stress that while discharging and recharging, core bag expands.
As improvement, described housing is aluminum hull or box hat, can play a protective role.
As improvement, described battery core unit is by positive plate, negative plate and membrane winding moulding, and the thickness of described barrier film is more than 20um, to prevent the generation of internal short-circuit.
The beneficial effect that the utility model compared with prior art brought is:
(1) in the utility model housing, by a plurality of battery cores unit, formed, the original battery core of coiling Length Ratio of each battery core unit is short, has shortened like this length of each battery core pole piece, is convenient to reel produce, many battery cores parallel connection simultaneously can reduce internal resistance, improves heavy-current discharge performance;
(2) the positive and negative lug of each battery core unit is with the welding in parallel with cover plate output stage of hyperacoustic mode, and portion wrapped by core and bottom is lined with insulation spacer, plays the insulating effect of lug and core bag, core bag and housing; Upper insulation spacer has some bar holes, so that positive and negative lug draws respectively, and can not contact with core bag, prevents short circuit;
(3) core bag outside is surrounded by PET film and aluminum plastic film, plays the insulating effect with housing, and alleviates the stress that while discharging and recharging, core bag expands.
Accompanying drawing explanation
Fig. 1 is the utility model decomposition view.
Embodiment
Below in conjunction with Figure of description, the utility model is described in further detail.
As shown in Figure 1, a kind of lithium ion battery, comprises housing 9, and described housing 9 is for having aluminum hull or the box hat of better defencive function.In described housing 9, be provided with core bag 1, described core bag 1 is rearranged by five square electric cell unit 11, described battery core unit 11 is by positive plate, negative plate and membrane winding moulding, and each 11 top, battery core unit is provided with anode ear 2 and negative electrode lug 3, between described battery core unit 11 for being connected in parallel; The thickness of described barrier film is more than 20um, to prevent the generation of internal short-circuit; By LiFePO4 or LiMn2O4 or ternary material, binding agent, conductive agent etc., form positive plate, by artificial or native graphite, binding agent, conductive agent etc., form negative plate.In the utility model housing 9, by a plurality of battery cores unit 11, formed, the original battery core of coiling Length Ratio of each battery core unit 11 is short, has shortened like this length of each battery core pole piece, is convenient to reel produce, many battery cores parallel connection simultaneously can reduce internal resistance, improves heavy-current discharge performance.
As shown in Figure 1, described core bag 1 top is provided with insulation spacer 4, and bottom is provided with lower insulation spacer 8; Described upper insulation spacer 4 is provided with some bar holes 5 that pass for anode ears 2 and negative electrode lug 3, so that positive and negative lug 3 draws respectively, and can not contact with core bag 1, prevents short circuit; Described upper insulation spacer 4 is provided with cover plate 6, described cover plate 6 is provided with positive and negative output stage 7, described positive and negative lug 3 welds with positive and negative output stage 7 respectively, during assembling, the positive and negative lug 3 of each battery core unit 11 is drawn by corresponding position, hole, again with cover plate welding, in the time of can avoiding after shell cover plate 6 with housing 9 welding, core bag 1 contacts with lug; Lower insulation spacer 8, because draw without lug core bag 1 bottom, therefore without perforate, just plays merely the effect of housing 9 bottoms and 1 insulation of core bag and buffering.
Described core bag 1 is for being enclosed with PET film, and described PET film is wrapped with aluminum plastic film.Core bag 1 outside is surrounded by PET film and aluminum plastic film, plays the insulating effect with housing 9, and alleviates the stress that while discharging and recharging, core bag 1 expands, outermost battery core is unlikely to and housing 9 between stressed excessive, and cause battery core internal modification.
Claims (3)
1. a lithium ion battery, comprise housing, it is characterized in that: in described housing, be provided with core bag, described core bag is rearranged by the square electric cell unit of some coiling and moldings, each top, battery core unit is provided with anode ear and negative electrode lug, between described battery core unit for being connected in parallel; Described core bag top is provided with insulation spacer, bottom is provided with lower insulation spacer, described upper insulation spacer is provided with some bar holes that supply anode ear and negative electrode lug to pass, described upper insulation spacer is provided with cover plate, described cover plate is provided with positive and negative output stage, and described positive and negative lug welds with positive and negative output stage respectively; Described core bag is for being enclosed with PET film, and described PET film is wrapped with aluminum plastic film.
2. a kind of lithium ion battery according to claim 1, is characterized in that: described housing is aluminum hull or box hat.
3. a kind of lithium ion battery according to claim 1, is characterized in that: described battery core unit is by positive plate, negative plate and membrane winding moulding, and the thickness of described barrier film is more than 20um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103251.8U CN203932227U (en) | 2014-03-10 | 2014-03-10 | A kind of lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420103251.8U CN203932227U (en) | 2014-03-10 | 2014-03-10 | A kind of lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203932227U true CN203932227U (en) | 2014-11-05 |
Family
ID=51827991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420103251.8U Expired - Fee Related CN203932227U (en) | 2014-03-10 | 2014-03-10 | A kind of lithium ion battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203932227U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576158A (en) * | 2016-03-01 | 2016-05-11 | 刘志运 | Lithium battery for new energy vehicles |
| CN110957137A (en) * | 2019-12-16 | 2020-04-03 | 湖南艾华集团股份有限公司 | Laminated high-voltage aluminum electrolytic capacitor core-pack monomer drawn from tabs, preparation method and capacitor |
| WO2020147146A1 (en) * | 2019-01-14 | 2020-07-23 | 清华大学 | Lithium ion battery and internal current distribution detection device thereof |
| CN114447525A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | A battery with double-sided tabs and method of assembling the same |
| CN114824287A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114899500A (en) * | 2022-05-31 | 2022-08-12 | 天津力神电池股份有限公司 | Preparation method of cylindrical lithium-ion battery with tabs on the same side of positive and negative electrodes |
| CN117175148A (en) * | 2022-05-25 | 2023-12-05 | 瑞浦兰钧能源股份有限公司 | Secondary battery component, secondary battery and assembly method thereof |
-
2014
- 2014-03-10 CN CN201420103251.8U patent/CN203932227U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105576158A (en) * | 2016-03-01 | 2016-05-11 | 刘志运 | Lithium battery for new energy vehicles |
| WO2020147146A1 (en) * | 2019-01-14 | 2020-07-23 | 清华大学 | Lithium ion battery and internal current distribution detection device thereof |
| CN110957137A (en) * | 2019-12-16 | 2020-04-03 | 湖南艾华集团股份有限公司 | Laminated high-voltage aluminum electrolytic capacitor core-pack monomer drawn from tabs, preparation method and capacitor |
| CN114447525A (en) * | 2022-01-28 | 2022-05-06 | 天津市捷威动力工业有限公司 | A battery with double-sided tabs and method of assembling the same |
| CN114447525B (en) * | 2022-01-28 | 2024-03-22 | 天津市捷威动力工业有限公司 | Battery with double-side tabs and assembling method thereof |
| CN114824287A (en) * | 2022-05-09 | 2022-07-29 | 江苏正力新能电池技术有限公司 | Battery core, battery module and battery pack |
| CN114824287B (en) * | 2022-05-09 | 2024-05-24 | 江苏正力新能电池技术有限公司 | Electric core, battery module and battery package |
| CN117175148A (en) * | 2022-05-25 | 2023-12-05 | 瑞浦兰钧能源股份有限公司 | Secondary battery component, secondary battery and assembly method thereof |
| CN114899500A (en) * | 2022-05-31 | 2022-08-12 | 天津力神电池股份有限公司 | Preparation method of cylindrical lithium-ion battery with tabs on the same side of positive and negative electrodes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20180310 |