CN203983413U - A kind of lithium ion battery with mixing battery core - Google Patents
A kind of lithium ion battery with mixing battery core Download PDFInfo
- Publication number
- CN203983413U CN203983413U CN201420230522.6U CN201420230522U CN203983413U CN 203983413 U CN203983413 U CN 203983413U CN 201420230522 U CN201420230522 U CN 201420230522U CN 203983413 U CN203983413 U CN 203983413U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- battery
- battery case
- cathode pole
- 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 - Lifetime
Links
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 17
- 239000007773 negative electrode material Substances 0.000 claims abstract description 18
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 4
- 230000009194 climbing Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 230000001133 acceleration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
- Battery Electrode And Active Subsutance (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a kind of lithium ion battery that mixes battery core that has, comprise battery case and filling electrolyte in battery case, in described battery case, level is stacked with anode pole piece and cathode pole piece successively, between wherein said anode pole piece and cathode pole piece, be provided with barrier film, described anode pole piece and cathode pole piece are connected with respectively positive pole ear and the negative lug of stretching out battery case, the cathode pole piece of described same layer is made up of the two or more negative electrode material layers that be arranged in parallel, between each negative electrode material layer, leaves space; This battery is by rational structural improvement, particularly cathode pole piece is made up of the negative electrode material layer of two or more different negative materials, can in ensureing high-energy-density, take into account high power density, both ensured that motor vehicle driven by mixed power and pure electric vehicle operating range were long, speed-raising time of having ensured again vehicle is fast, climbing strength is large, will promote greatly the development of new energy vehicle with universal.
Description
Technical field
The utility model relates to a kind of lithium ion battery, particularly a kind of lithium ion battery with mixing battery core.
Background technology
Because energy shortage and problem of environmental pollution become increasingly conspicuous, therefore at vehicular field, for reaching the object of energy-conserving and environment-protective, motor vehicle driven by mixed power and pure electric vehicle become a kind of development trend.And a universal key point of motor vehicle driven by mixed power and pure electric vehicle is lithium ion battery.
In the time that motor vehicle driven by mixed power and pure electric vehicle need to be grown distance travel, need lithium ion battery to carry energy as much as possible in certain volume or certain quality, to meet maximum flying power; In the time of the situations such as motor vehicle driven by mixed power and pure electric vehicle acceleration, climbing, need lithium ion battery large as far as possible multiplying power discharging in certain volume or certain quality, to meet the acceleration grade climbing performance of vehicle.In the superbattery in electric power energy storage field, also in the urgent need to improving storage density and the velocity of discharge of battery.The single class battery core lithium ion battery of tradition is difficult to meet the requirement of high-energy-density and high power density simultaneously, has restricted the extensive popularization and application of motor vehicle driven by mixed power, pure electric vehicle and superbattery
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provide a kind of performance more reliable and more stable, there is the lithium ion battery of battery core of mixing.
The utility model solves the technical scheme that its technical problem adopts:
A kind of lithium ion battery with mixing battery core, comprise battery case and filling electrolyte in battery case, in described battery case, level is stacked with anode pole piece and cathode pole piece successively, between wherein said anode pole piece and cathode pole piece, be provided with barrier film, described anode pole piece and cathode pole piece are connected with respectively positive pole ear and the negative lug of stretching out battery case, the described cathode pole piece of same layer is made up of the two or more negative electrode material layers that be arranged in parallel, between each negative electrode material layer, leaves space.
As a preference, in each layer of described cathode pole piece, the corresponding negative electrode material layer in position connects with corresponding negative current collector respectively, and described negative lug is connected with cathode pole piece by negative current collector.
As a preference, between each layer of described anode pole piece, connect by plus plate current-collecting body, described positive pole ear is connected with anode pole piece by plus plate current-collecting body.
As a preference, described positive pole ear and negative lug are positioned at the same side of battery case.
As a preference, described positive pole ear and negative lug lay respectively at the both sides of battery case.
The beneficial effects of the utility model are: this battery is by rational structural improvement, particularly cathode pole piece is made up of the negative electrode material layer of two or more different negative materials, can in ensureing high-energy-density, take into account high power density, both ensured that motor vehicle driven by mixed power and pure electric vehicle operating range were long, speed-raising time of having ensured again vehicle is fast, climbing strength is large, will promote greatly the development of new energy vehicle with universal.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 2 is left TV structure schematic diagram of the present utility model;
Fig. 3 is vertical view of the present utility model;
Fig. 4 is the vertical view of another embodiment of the utility model.
Embodiment
With reference to Fig. 1, Fig. 2, a kind of lithium ion battery with mixing battery core, comprise battery case 1 and filling electrolyte 2 in battery case 1, in described battery case 1, level is stacked with anode pole piece 3 and cathode pole piece 4 successively, between wherein said anode pole piece 3 and cathode pole piece 4, be provided with barrier film 5, according to anode pole piece 3, barrier film 5, cathode pole piece 4, barrier film 5, anode pole piece 3, barrier film 5, cathode pole piece 4 ... order cross arrangement.Described anode pole piece 3 and cathode pole piece 4 are connected with respectively positive pole ear 31 and the negative lug 41 of stretching out battery case 1, and the described cathode pole piece 4 of same layer is made up of the two or more negative electrode material layers that be arranged in parallel 42.Between each negative electrode material layer 42 of cathode pole piece 4, leave space, generally formed by the negative electrode material layer 42 of two or more different negative materials.
In each layer of described cathode pole piece 4, the corresponding negative electrode material layer 42 in position connects with corresponding negative current collector 6 respectively, and described negative lug 41 is connected with cathode pole piece 4 by negative current collector 6.The negative electrode material layer 42 of for example same file is connected by same negative current collector 6.Because each group of negative electrode material layer 42 is to connect from different negative current collectors 6 respectively, therefore between negative electrode material layer 42, do not need on the same group separator can ensure not occur short circuit yet.
Between each layer of described anode pole piece 3, connect by plus plate current-collecting body 7, described positive pole ear 31 is connected with anode pole piece 3 by plus plate current-collecting body 7.
With reference to Fig. 3, as an embodiment, described positive pole ear 31 and negative lug 41 are positioned at the same side of battery case 1, conveniently connect power supply.
With reference to Fig. 4, as another embodiment, described positive pole ear 31 and negative lug 41 lay respectively at the both sides of battery case 1, reduce the chance of the short circuit because external cord confuses between lug.
According to above-mentioned principle, the utility model can also carry out suitable change and amendment to above-mentioned execution mode.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection range of claim of the present utility model modifications and changes more of the present utility model.
Through facts have proved, this battery forms cathode pole piece 4 by the negative electrode material layer 42 by two or more different negative materials, can in ensureing high-energy-density, take into account high power density, has improved the performance of battery.
Claims (5)
1. one kind has the lithium ion battery that mixes battery core, comprise battery case (1) and filling electrolyte (2) in battery case (1), in described battery case (1), level is stacked with anode pole piece (3) and cathode pole piece (4) successively, between wherein said anode pole piece (3) and cathode pole piece (4), be provided with barrier film (5), described anode pole piece (3) and cathode pole piece (4) are connected with respectively positive pole ear (31) and the negative lug (41) of stretching out battery case (1), it is characterized in that: the described cathode pole piece (4) of same layer is made up of the two or more negative electrode material layers that be arranged in parallel (42), each negative electrode material layer leaves space between (42).
2. a kind of lithium ion battery that mixes battery core that has according to claim 1, it is characterized in that: in each layer of described cathode pole piece (4), the corresponding negative electrode material layer (42) in position connects with corresponding negative current collector (6) respectively, and described negative lug (41) is connected with cathode pole piece (4) by negative current collector (6).
3. a kind of lithium ion battery that mixes battery core that has according to claim 1, it is characterized in that: between each layer of described anode pole piece (3), connect by plus plate current-collecting body (7), described positive pole ear (31) is connected with anode pole piece (3) by plus plate current-collecting body (7).
4. according to a kind of lithium ion battery with mixing battery core described in claim 2 or 3, it is characterized in that: described positive pole ear (31) and negative lug (41) are positioned at the same side of battery case (1).
5. according to a kind of lithium ion battery with mixing battery core described in claim 2 or 3, it is characterized in that: described positive pole ear (31) and negative lug (41) lay respectively at the both sides of battery case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230522.6U CN203983413U (en) | 2014-05-07 | 2014-05-07 | A kind of lithium ion battery with mixing battery core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420230522.6U CN203983413U (en) | 2014-05-07 | 2014-05-07 | A kind of lithium ion battery with mixing battery core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203983413U true CN203983413U (en) | 2014-12-03 |
Family
ID=51980835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420230522.6U Expired - Lifetime CN203983413U (en) | 2014-05-07 | 2014-05-07 | A kind of lithium ion battery with mixing battery core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203983413U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350135A (en) * | 2018-04-06 | 2019-10-18 | 通用汽车环球科技运作有限责任公司 | The battery pack of battery battery core with asymmetric encapsulation and symmetrical current path |
-
2014
- 2014-05-07 CN CN201420230522.6U patent/CN203983413U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350135A (en) * | 2018-04-06 | 2019-10-18 | 通用汽车环球科技运作有限责任公司 | The battery pack of battery battery core with asymmetric encapsulation and symmetrical current path |
| CN110350135B (en) * | 2018-04-06 | 2022-03-08 | 通用汽车环球科技运作有限责任公司 | Battery pack with battery cells having asymmetric packaging and symmetric current paths |
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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: 20141203 |