CN202004105U - High rate button secondary lithium battery - Google Patents
High rate button secondary lithium battery Download PDFInfo
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- CN202004105U CN202004105U CN2011200086517U CN201120008651U CN202004105U CN 202004105 U CN202004105 U CN 202004105U CN 2011200086517 U CN2011200086517 U CN 2011200086517U CN 201120008651 U CN201120008651 U CN 201120008651U CN 202004105 U CN202004105 U CN 202004105U
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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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- Battery Electrode And Active Subsutance (AREA)
Abstract
The utility model relates to a high rate button secondary lithium battery, which comprises a cathode shell and is characterized in that a cathode current collector layer is distributed on the cathode shell; a cathode material layer is distributed on the cathode current collector layer in a sedimentary manner; meanwhile, the cathode material layer is simultaneously connected with an anode material layer through a diaphragm layer; an anode current collector layer is distributed on the anode material layer; an anode shell is distributed on the anode current collector layer; and the anode shell is connected with the cathode shell. Thus, by relying on a hard carbon material layer to form the cathode material layer and matching the cathode material layer with the anode material layer formed by a ferrous phosphate lithium material layer, the effects that the specific capacity is high, the cycle life is long, the structure is steady, raw material resources are abundant, the safety is high and the environment is not polluted are achieved; and in addition, compared with the cycle life of a ferrous phosphate lithium or hard carbon half electrode, the cycle life of the high rate button secondary lithium battery is obviously prolonged.
Description
The utility model relates to a kind of battery, relates in particular to a kind of high magnification button serondary lithium battery.
Background technology
The performance of lithium ion battery and the performance of lithium ion battery material are closely related.Therefore the development course of lithium ion battery is accompanied by the innovation and the breakthrough of battery material, specifically comprises the positive and negative electrode material, electrolyte, and barrier film etc., wherein positive and negative electrode material and electrolyte also are the emphasis of Study on Li-ion batteries using to the having the greatest impact of battery.
Present commercial lithium ion battery major part is a positive pole with cobalt acid lithium material, and graphitized carbon material is a negative pole.Along with the development of information technology, be the continuous miniaturization of portable set of representative with notebook computer, mobile phone etc., intellectuality requires its power supply height ratio capacityization more.In addition, field such as electric automobile requires motive-power battery must have height ratio capacity, low cost and high security.With cobalt acid lithium material is positive pole, and graphitized carbon material is that the lithium ion battery of negative pole can not satisfy the requirement of above-mentioned development.
There are the not high problems of fail safe owing to adopt pure cobalt acid lithium to do anodal lithium ion battery, so select a kind of better positive electrode to be inevitable.LiFePO 4 because of have the specific capacity height, have extended cycle life, Stability Analysis of Structures, abundant raw material, fail safe is good and advantages of environment protection, is considered to have most the new type lithium ion battery positive electrode of application potential.
Hard carbon is meant difficult graphitized carbon, is the RESEARCH OF PYROCARBON of high molecular polymer.Discover that hard carbon material all has characteristics such as specific capacity height, good cycle, cost be low.
The utility model content
The purpose of this utility model is exactly in order to solve the above-mentioned problems in the prior art, and a kind of high magnification button serondary lithium battery is provided.
The purpose of this utility model is achieved through the following technical solutions:
High magnification button serondary lithium battery includes negative electrode casing, wherein: be distributed with the negative current collector layer on the described negative electrode casing; Precipitation is furnished with negative electrode material layer on the described negative current collector; Described negative material connects positive electrode material layer by membrane layer; Be distributed with the plus plate current-collecting body layer on the described positive electrode material layer; Be distributed with anode cover on the described plus plate current-collecting body layer, described anode cover links to each other with negative electrode casing.
Above-mentioned high magnification button serondary lithium battery, wherein: the extension layer that distributes between described plus plate current-collecting body layer and the anode cover, described extension layer includes pad, and described pad is distributed on the plus plate current-collecting body layer; Be distributed with nickel foam on the described plus plate current-collecting body layer.
Further, above-mentioned high magnification button serondary lithium battery, wherein: described negative current collector layer is a copper foil layer.
Further, above-mentioned high magnification button serondary lithium battery, wherein: described negative electrode material layer is the hard carbon material layer.
Further, above-mentioned high magnification button serondary lithium battery, wherein: described positive electrode material layer is the ferrousphosphate lithium material layer.
Further, above-mentioned high magnification button serondary lithium battery, wherein: described plus plate current-collecting body layer is an aluminium foil layer.
Further, above-mentioned high magnification button serondary lithium battery, wherein: described negative electrode casing two ends are provided with buckling groove, and described anode cover two ends are provided with the linking fixture block; Or described negative electrode casing two ends are provided with the linking fixture block, and described anode cover two ends are provided with buckling groove, the mutual clamping of negative pole and anode cover.
Further, above-mentioned high magnification button serondary lithium battery, wherein: be distributed with sealing ring on the contact-making surface of described negative electrode casing and anode cover.
Again further, above-mentioned high magnification button serondary lithium battery, wherein: described membrane layer is three layers of composite diaphragm that Celgard-2300PP, PE and PP constitute.
The advantage of technical solutions of the utility model is mainly reflected in: rely on the hard carbon material layer and constitute negative electrode material layer, match with the positive electrode material layer that the ferrousphosphate lithium material layer constitutes simultaneously, can realize the specific capacity height, have extended cycle life, Stability Analysis of Structures, raw material resources are abundant, fail safe is good, free from environmental pollution.And, be significantly improved with respect to the cycle life of LiFePO 4 or hard carbon half electrode.
Description of drawings
The purpose of this utility model, advantage and characteristics will illustrate by the non-limitative illustration of following preferred embodiment and explain.These embodiment only are the prominent examples of using technical solutions of the utility model, and all technical schemes of taking to be equal to replacement or equivalent transformation and forming all drop within the claimed scope of the utility model.In the middle of these accompanying drawings,
Fig. 1 is the organigram of this high magnification button serondary lithium battery.
The implication of each Reference numeral is as follows among the figure:
1 anode cover, 2 nickel foam
3 pads, 4 plus plate current-collecting body layers
5 positive electrode material layers, 6 membrane layers
7 sealing rings, 8 negative current collector layers
9 negative electrode material layers, 10 negative electrode casings
Embodiment
High magnification button serondary lithium battery as shown in Figure 1 includes negative electrode casing 10, and its special feature is: be distributed with negative current collector layer 8 on the negative electrode casing 10 that the utility model adopted.Specifically, precipitation is furnished with negative electrode material layer 9 on this negative current collector.Simultaneously, connect positive electrode material layer 5 at negative material by membrane layer 6.And, on positive electrode material layer 5, be distributed with plus plate current-collecting body layer 4, be distributed with anode cover 1 on this plus plate current-collecting body layer 4, described anode cover 1 links to each other with negative electrode casing 10.
With regard to the utility model one preferred implementation, in order to promote the specific capacity of battery, the utility model is at the extension layer that distributes between plus plate current-collecting body layer 4 and anode cover 1.Specifically, this extension layer includes pad 3, and pad 3 is distributed on the plus plate current-collecting body layer 4, is distributed with nickel foam 2 on the plus plate current-collecting body layer 4.
Further, consider that the cycle life that allows between whole button serondary lithium battery is effectively promoted, the negative current collector layer 8 that the utility model adopted is copper foil layer, and negative electrode material layer 9 is the hard carbon material layer.Correspondence is with it, and positive electrode material layer 5 is the ferrousphosphate lithium material layer, and plus plate current-collecting body layer 4 is an aluminium foil layer.
Again further, consider the Stability Analysis of Structures degree that promotes whole button serondary lithium battery, negative electrode casing 10 two ends that the utility model adopted are provided with buckling groove, and anode cover 1 two ends are provided with the linking fixture block.Thus, negative pole and anode cover 1 mutual clamping in addition.Certainly, considering the requirement difference of processing, can also be to be provided with the linking fixture block at negative electrode casing 10 two ends, makes buckling groove be distributed in anode cover 1 two ends, can realize same effect.Moreover, connect sealing effectiveness in order effectively to promote, be distributed with sealing ring 7 on the contact-making surface of negative electrode casing 10 and anode cover 1.
By above-mentioned character express also in conjunction with the accompanying drawings as can be seen, after adopting the utility model, rely on the hard carbon material layer and constitute negative electrode material layer, match with the positive electrode material layer that the ferrousphosphate lithium material layer constitutes simultaneously, can realize the specific capacity height, have extended cycle life, Stability Analysis of Structures, raw material resources are abundant, fail safe is good, free from environmental pollution.And, be significantly improved with respect to the cycle life of LiFePO 4 or hard carbon half electrode.
Claims (9)
1. high magnification button serondary lithium battery includes negative electrode casing, it is characterized in that: be distributed with the negative current collector layer on the described negative electrode casing; Precipitation is furnished with negative electrode material layer on the described negative current collector; Described negative material connects positive electrode material layer by membrane layer; Be distributed with the plus plate current-collecting body layer on the described positive electrode material layer; Be distributed with anode cover on the described plus plate current-collecting body layer, described anode cover links to each other with negative electrode casing.
2. high magnification button serondary lithium battery according to claim 1 is characterized in that: the extension layer that distributes between described plus plate current-collecting body layer and the anode cover, and described extension layer includes pad, and described pad is distributed on the plus plate current-collecting body layer; Be distributed with nickel foam on the described plus plate current-collecting body layer.
3. high magnification button serondary lithium battery according to claim 1 is characterized in that: described negative current collector layer is a copper foil layer.
4. high magnification button serondary lithium battery according to claim 1 is characterized in that: described negative electrode material layer is the hard carbon material layer.
5. high magnification button serondary lithium battery according to claim 1 is characterized in that: described positive electrode material layer is the ferrousphosphate lithium material layer.
6. high magnification button serondary lithium battery according to claim 1 is characterized in that: described plus plate current-collecting body layer is an aluminium foil layer.
7. high magnification button serondary lithium battery according to claim 1 is characterized in that: described negative electrode casing two ends are provided with buckling groove, and described anode cover two ends are provided with the linking fixture block; Or described negative electrode casing two ends are provided with the linking fixture block, and described anode cover two ends are provided with buckling groove, the mutual clamping of negative pole and anode cover.
8. high magnification button serondary lithium battery according to claim 1 is characterized in that: be distributed with sealing ring on the contact-making surface of described negative electrode casing and anode cover.
9. high magnification button serondary lithium battery according to claim 1 is characterized in that: described membrane layer is three layers of composite diaphragm that Celgard-2300PP, PE and PP constitute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200086517U CN202004105U (en) | 2011-01-13 | 2011-01-13 | High rate button secondary lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200086517U CN202004105U (en) | 2011-01-13 | 2011-01-13 | High rate button secondary lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202004105U true CN202004105U (en) | 2011-10-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200086517U Expired - Fee Related CN202004105U (en) | 2011-01-13 | 2011-01-13 | High rate button secondary lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202004105U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593506A (en) * | 2011-01-13 | 2012-07-18 | 苏州能斯特新能源有限公司 | High-rate button secondary lithium battery |
| CN104701495A (en) * | 2013-12-05 | 2015-06-10 | 天津赫维科技有限公司 | Production method of lithium-aluminum alloy negative electrode for button battery |
-
2011
- 2011-01-13 CN CN2011200086517U patent/CN202004105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102593506A (en) * | 2011-01-13 | 2012-07-18 | 苏州能斯特新能源有限公司 | High-rate button secondary lithium battery |
| CN104701495A (en) * | 2013-12-05 | 2015-06-10 | 天津赫维科技有限公司 | Production method of lithium-aluminum alloy negative electrode for button battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Nernst New Energy (Suzhou) Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Nernst New Energy (Suzhou) Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20140113 |