CN202094232U - Lithium manganate lithium ion power battery - Google Patents
Lithium manganate lithium ion power battery Download PDFInfo
- Publication number
- CN202094232U CN202094232U CN2011201938552U CN201120193855U CN202094232U CN 202094232 U CN202094232 U CN 202094232U CN 2011201938552 U CN2011201938552 U CN 2011201938552U CN 201120193855 U CN201120193855 U CN 201120193855U CN 202094232 U CN202094232 U CN 202094232U
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- Prior art keywords
- lithium
- battery
- ion power
- manganese oxide
- barrier film
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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
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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
- 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
Abstract
The utility model discloses a lithium manganate lithium ion power battery which comprises a battery core. The battery core comprises a square roll core with a lamination structure; the roll core comprises first diaphragms and second diaphragms, a first pole piece is arranged between adjacent first diaphragm lamination and second diaphragm lamination; a second pole piece is arranged between each two adjacent first diaphragm laminations, as well as each two adjacent second diaphragm laminations; the first pole pieces and the second pole pieces are positive pole pieces and negative pole pieces respectively; and a lithium manganate positive pole active material layer is coated on the positive pole pieces. After the lithium manganate positive pole active layers coated on the positive pole pieces are processed through adopting a special process and a specific device, the density of electrode surfaces is lowered to 10-15mg/cm<2>, thus the thickness of the pole pieces is greatly reduced, the material performance is brought to play, the battery performance is improved, and the cycle life of the battery is prolonged. By adopting the battery core produced by the lamination process, the cycle life of the battery is prolonged, and the mechanical strength of the battery is enhanced.
Description
Technical field
The utility model relates to the lithium ion battery field, relates in particular to a kind of lithium manganese oxide lithium-ion power battery.
Background technology
The tradition active substance of lithium ion battery anode uses the LiCoO2 material, but under the extreme cases such as LiCoO2 is overcharging at battery, short circuit on fire, blast takes place easily, so its security performance is very poor.The capacity of lithium ion battery that communication is used is little, so LiCoO2 active material consumption is few, even dangerous situations such as overcharging appears in lithium ion battery, short circuit, lithium ion battery can not produce very big destructive power yet, if but the LiCoO2 active material is used in the lithium-ion-power cell, because the electrokinetic cell capacity is big, the LiCoO2 quantity of material that needs is big, in case above-mentioned dangerous situation occurs, will produce huge destructive power, consequence is hardly imaginable, so the LiCoO2 material is not suitable for use in the active material of lithium-ion-power cell.
Along with continuous progress, development, the especially research of security performance aspect of people, developed the good new material LiMnO2 of security performance, to replace the application of LiCoO2 in the lithium-ion-power cell to lithium-ion-power cell research.But, because lithium manganate material is a spinel structure, cycle life is poor, in the manufacturing and production industry of lithium ion battery, general lithium manganate material institute 300 capacity attenuations of assembled battery circulation are 70% of initial capacity, obviously can not satisfy the requirement of lithium-ion-power cell to cycle life.
Adopt LiMn2O4 generally to design in the 17-20mg/cm2 scope as the electrode surface density of positive active material at present, surface density is bigger than normal, thereby causes the thick partially performance that influences battery performance of pole piece.In addition, the battery pack on some electric tools such as the electric bicycle adopts the form of unitary series of operations to form, and this single type of attachment easily causes the battery pack internal resistance to increase, thereby has reduced the overall performance of battery pack.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of lithium manganese oxide lithium-ion power battery is provided.
For solving the problems of the technologies described above, the technical solution of the utility model is: lithium manganese oxide lithium-ion power battery, comprise battery, described battery comprises the square volume core of lamination, described volume core comprises: first barrier film and second barrier film, stacked and the inflection of described first barrier film and second barrier film is stacked together and forms the several layers lamination, be provided with one first pole piece between the lamination of adjacent described first barrier film and the lamination of second barrier film, be equipped with one second pole piece between two adjacent laminations of described first barrier film and between two adjacent laminations of described second barrier film, described first pole piece and second pole piece are respectively positive plate and negative plate, are coated with the lithium manganate cathode active material layer on the described positive plate.
As a kind of improvement, described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power batteries are connected into battery pack.
As a kind of improvement, described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power batteries also are unified into battery pack.
As a kind of improvement, described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power battery connection in series-parallel are combined into battery pack.
Owing to adopted technique scheme, be coated with the lithium manganate cathode active material layer on the positive plate, after employing special process and the ad hoc apparatus processing, electrode surface density is reduced to 10-15mg/cm
2Greatly reduce the thickness of electrode slice, make material property obtain performance, improved battery performance, prolonged the cycle life of battery; The battery that the utility model adopts this lamination technology to make has prolonged the cycle life of battery, and has strengthened the mechanical strength of battery.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the structural representation of volume core among the utility model embodiment;
10-first pole piece; 20-second pole piece; 30-first barrier film; 40-second barrier film.
Embodiment
As shown in Figure 1, lithium manganese oxide lithium-ion power battery, comprise battery, described battery comprises the square volume core of lamination, described volume core comprises: first barrier film 30 and second barrier film 40, stacked and the inflection of first barrier film 30 and second barrier film 40 is stacked together and forms the several layers lamination, be provided with between the lamination of the first adjacent barrier film 30 and the lamination of second barrier film 40 between two adjacent laminations of one first pole piece, 10, the first barrier films 30 and between two adjacent laminations of described second barrier film 40 and be equipped with one second pole piece 20.
Battery after lamination is finished is arranged in the described shell, adopts the high circulation LiMn2O4 electrolyte of coupling to carry out fluid injection, seals after changing into, and is full of the detection of electricity back and promptly gets lithium manganese oxide lithium-ion power battery.
The battery that adopts this lamination technology to make, the cycle life of the battery that has prolonged, and strengthened the mechanical strength of battery.
Detect the monomer lithium manganese oxide lithium-ion power battery of the some after qualified, different according to applied occasion with power supply unit, can adopt the mode of series, parallel, connection in series-parallel combination to be assembled into battery pack, obtain this lithium manganese oxide lithium-ion power battery group.
Lithium manganese oxide lithium-ion power battery is adopted 2 and 3 modes of going here and there, and promptly 2 monomer lithium manganese oxide lithium-ion power batteries are one group of series connection, totally 3 groups of parallel connections, and the battery pack of composition, voltage 12V, capacity 10Ah is applied to mine lamp.
With the battery pack that lithium manganese oxide lithium-ion power battery adopts the mode of 5 and 10 strings to form, voltage 38V, capacity 50Ah is applied to electric bicycle.
With the battery pack that lithium manganese oxide lithium-ion power battery adopts the mode of 2 and 10 strings to form, voltage 380V, capacity 100Ah is applied to electric automobile.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof
Claims (4)
1. lithium manganese oxide lithium-ion power battery, comprise battery, it is characterized in that, described battery comprises the square volume core of lamination, described volume core comprises: first barrier film and second barrier film, stacked and the inflection of described first barrier film and second barrier film is stacked together and forms the several layers lamination, be provided with one first pole piece between the lamination of adjacent described first barrier film and the lamination of second barrier film, be equipped with one second pole piece between two adjacent laminations of described first barrier film and between two adjacent laminations of described second barrier film, described first pole piece and second pole piece are respectively positive plate and negative plate, are coated with the lithium manganate cathode active material layer on the described positive plate.
2. lithium manganese oxide lithium-ion power battery as claimed in claim 1 is characterized in that: described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power batteries are connected into battery pack.
3. lithium manganese oxide lithium-ion power battery as claimed in claim 1 is characterized in that: described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power batteries also are unified into battery pack.
4. lithium manganese oxide lithium-ion power battery as claimed in claim 1 is characterized in that: described lithium manganese oxide lithium-ion power battery comprises a plurality of, and described a plurality of lithium manganese oxide lithium-ion power battery connection in series-parallel are combined into battery pack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201938552U CN202094232U (en) | 2011-06-10 | 2011-06-10 | Lithium manganate lithium ion power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201938552U CN202094232U (en) | 2011-06-10 | 2011-06-10 | Lithium manganate lithium ion power battery |
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| Publication Number | Publication Date |
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| CN202094232U true CN202094232U (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011201938552U Expired - Lifetime CN202094232U (en) | 2011-06-10 | 2011-06-10 | Lithium manganate lithium ion power battery |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682460A (en) * | 2013-12-19 | 2014-03-26 | 深圳市吉阳自动化科技有限公司 | Stacking machine and stacking method thereof |
| CN105244527A (en) * | 2014-07-04 | 2016-01-13 | 三星Sdi株式会社 | Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same |
| CN106129478A (en) * | 2016-08-17 | 2016-11-16 | 惠州市豪鹏科技有限公司 | A kind of lamination type electric pool structure, the secondary battery including it and battery module |
| CN106129482A (en) * | 2016-08-17 | 2016-11-16 | 惠州市豪鹏科技有限公司 | A kind of coiled battery structure, the secondary battery including it and battery module |
| CN109286045A (en) * | 2017-07-19 | 2019-01-29 | 横店集团东磁股份有限公司 | A kind of lithium ion battery and preparation method thereof and purposes |
| CN113823765A (en) * | 2021-08-10 | 2021-12-21 | 星恒电源股份有限公司 | Lithium manganate/lithium manganese iron phosphate composite positive plate and lithium ion battery |
| WO2022179621A1 (en) * | 2021-02-26 | 2022-09-01 | 蜂巢能源科技股份有限公司 | Battery cell and lamination apparatus |
| CN115084782A (en) * | 2022-08-18 | 2022-09-20 | 江苏时代新能源科技有限公司 | Electrode assembly, battery cell, battery and power consumption device |
-
2011
- 2011-06-10 CN CN2011201938552U patent/CN202094232U/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682460A (en) * | 2013-12-19 | 2014-03-26 | 深圳市吉阳自动化科技有限公司 | Stacking machine and stacking method thereof |
| US10454131B2 (en) | 2014-07-04 | 2019-10-22 | Samsung Sdi Co., Ltd. | Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same |
| CN105244527A (en) * | 2014-07-04 | 2016-01-13 | 三星Sdi株式会社 | Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same |
| US10897058B2 (en) | 2014-07-04 | 2021-01-19 | Samsung Sdi Co., Ltd. | Secondary battery, apparatus for manufacturing the same, and method of manufacturing the same |
| CN105244527B (en) * | 2014-07-04 | 2020-01-14 | 三星Sdi株式会社 | Secondary battery, apparatus for manufacturing secondary battery, and method of manufacturing secondary battery |
| CN106129482A (en) * | 2016-08-17 | 2016-11-16 | 惠州市豪鹏科技有限公司 | A kind of coiled battery structure, the secondary battery including it and battery module |
| CN106129478A (en) * | 2016-08-17 | 2016-11-16 | 惠州市豪鹏科技有限公司 | A kind of lamination type electric pool structure, the secondary battery including it and battery module |
| CN109286045A (en) * | 2017-07-19 | 2019-01-29 | 横店集团东磁股份有限公司 | A kind of lithium ion battery and preparation method thereof and purposes |
| CN109286045B (en) * | 2017-07-19 | 2020-09-18 | 横店集团东磁股份有限公司 | Lithium ion battery and manufacturing method and application thereof |
| WO2022179621A1 (en) * | 2021-02-26 | 2022-09-01 | 蜂巢能源科技股份有限公司 | Battery cell and lamination apparatus |
| CN113823765A (en) * | 2021-08-10 | 2021-12-21 | 星恒电源股份有限公司 | Lithium manganate/lithium manganese iron phosphate composite positive plate and lithium ion battery |
| CN113823765B (en) * | 2021-08-10 | 2022-12-23 | 星恒电源股份有限公司 | Lithium manganate/lithium manganese iron phosphate composite positive plate and lithium ion battery |
| CN115084782A (en) * | 2022-08-18 | 2022-09-20 | 江苏时代新能源科技有限公司 | Electrode assembly, battery cell, battery and power consumption device |
| CN115084782B (en) * | 2022-08-18 | 2022-11-22 | 江苏时代新能源科技有限公司 | Electrode assembly, battery cell, battery and electric device |
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| C14 | Grant of patent or utility model | ||
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| CX01 | Expiry of patent term |
Granted publication date: 20111228 |
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| CX01 | Expiry of patent term |