CN201725843U - High-rate lithium battery - Google Patents
High-rate lithium battery Download PDFInfo
- Publication number
- CN201725843U CN201725843U CN201020195513XU CN201020195513U CN201725843U CN 201725843 U CN201725843 U CN 201725843U CN 201020195513X U CN201020195513X U CN 201020195513XU CN 201020195513 U CN201020195513 U CN 201020195513U CN 201725843 U CN201725843 U CN 201725843U
- Authority
- CN
- China
- Prior art keywords
- electrode plate
- battery
- negative electrode
- positive electrode
- high rate
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000004804 winding Methods 0.000 abstract 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium Ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 17
- 229910001416 lithium ion Inorganic materials 0.000 description 17
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000002708 enhancing Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052803 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 230000001808 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 238000011031 large scale production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000630 rising Effects 0.000 description 1
Classifications
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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
-
- 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 high-rate lithium battery, which comprises a case and a battery core, wherein the battery core comprises an electrode plate group formed by a positive electrode plate and a negative electrode plate, a diaphragm is arranged between the positive electrode plate and the negative electrode plate, the positive electrode plate or the negative electrode plate is connected with a battery terminal through a battery positive electrode lug or a negative electrode lug in fixed connection with the positive electrode plate or the negative electrode plate, the positive electrode lug is arranged at the middle part of the positive electrode plate, and the negative electrode lug is arranged at the middle part of the negative electrode plate. The utility model changes the structural design of an electric core through changing the positions of the positive electrode plate and the negative electrode plate on the basis of the winding type structural design, so the rate performance of the lithium battery in a coiling structure can be improved, the adoption of a winding type structure by the high-rate battery can be realized, and the production efficiency can be greatly improved.
Description
Technical field
The utility model belongs to the lithium ion battery field, especially relates to a kind of powerful lithium ion battery.
Background technology
In recent years, along with electric tool, electronic toy, the rapid rising of the model of an airplane constantly increases the performance requirement of lithium ion.The high rate performance of lithium ion battery particularly.
At present lithium ion battery is manufactured with two kinds of takeup type structure and lamination type electric pool structures.The takeup type structure operation is simple, the efficient height, but positive/negative plate is the strip structure in the takeup type structure, the lug of traditional takeup type structure both positive and negative polarity is at the head or the afterbody of pole piece, the path of lithium ion conduction is longer, thereby the internal resistance of the lithium ion battery of takeup type structure is higher, and high rate performance is relatively poor.So high-multiplying-power battery adopts laminated structure usually.The electric core of laminated structure design contacts between electrode, the evenness height, and the interface stability height, electron transport speed is fast, good rate capability.But the lamination operating efficiency is low, and to personnel, equipment etc. require high, the cost height, and the task difficulty height is difficult to accomplish large-scale production.
The utility model content
The purpose of this utility model is to provide a kind of electric tool that is widely used in, electronic toy, and the high multiplying power lithium ion battery of electrical equipments such as the model of an airplane solves the defective that prior art exists.
For achieving the above object, the utility model adopts following technical scheme:
A kind of high rate lithium battery comprises shell, battery, it is characterized in that: described battery comprises the pole piece group that positive plate and negative plate are formed, and is provided with barrier film between positive/negative plate; Described positive plate or negative plate are connected with battery terminal by fixedly connected anode ear or negative electrode lug, and described anode ear is arranged at the middle part of positive plate, and described negative electrode lug is arranged at the middle part of negative plate.
Preferably: described high rate lithium battery is square or cylindrical high rate lithium battery.
The utility model compared with prior art has following advantage and beneficial effect:
The utility model is on the basis of takeup type structural design, by changing the position of positive/negative plate, change the structural design of electric core, thereby improve the high rate performance of takeup type structure lithium ion battery, thereby realize that high-multiplying-power battery adopts the takeup type structure, enhances productivity greatly.The quality of the high rate performance of lithium ion battery is decided by the speed and the electrical conductivity speed of battery intermediate ion conduction, the present invention moves to the position of lug the middle part of pole piece from the limit end, originally pole piece tail end electrical conductance path is the length of whole pole piece, improving the back electronics conducts to the centre from two ends, shortened the path of electrical conductivity, thereby accelerate the speed of electron transport, thereby can improve the high rate performance of lithium ion battery, also can reduce the internal resistance of lithium ion battery simultaneously.
Description of drawings
Fig. 1 is a battery positive plate structural representation described in the utility model;
Fig. 2 is a multiplying power discharging curve synoptic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further details:
Embodiment 1
As shown in Figure 1, a kind of preferred embodiment, a kind of high-magnification cylindrical lithium battery comprises shell, battery, described battery comprises the pole piece group that positive plate 1 and negative plate 2 are formed, and is provided with barrier film between positive/negative plate; Described positive plate 1 or negative plate 2 are connected with battery terminal by fixedly connected anode ear 11 or negative electrode lug 12, and described anode ear is arranged at the middle part of positive plate, and described negative electrode lug is arranged at the middle part of negative plate.
Present embodiment is novel coiling formula lithium ion battery structure design, based on the takeup type structural design, the lug of positive/negative plate is moved on to the centre of pole piece, and coupling is reeled, with the high rate performance of raising battery.
The quality of the high rate performance of lithium ion battery is decided by the speed and the electrical conductivity speed of battery intermediate ion conduction, the present invention moves to the position of lug the middle part of pole piece from the limit end, originally pole piece tail end electrical conductance path is the length of whole pole piece, improving the back electronics conducts to the centre from two ends, shortened the path of electrical conductivity, thereby accelerate the speed of electron transport, thereby can improve the high rate performance of lithium ion battery, also can reduce the internal resistance of lithium ion battery simultaneously.
Adopt the structure of present embodiment, adopt the takeup type mode of production also can produce the good high-multiplying-power battery of high rate performance, enhance productivity greatly; The internal resistance of cell of producing obviously reduces, and helps the cycle performance and the high rate performance of battery; Be particularly suitable for adopting semi-automatic or the full automatic production equipment operation.Improve the consistency and the stability of battery.The described battery pole piece structural design of present embodiment is not only applicable to the design of cylindrical shape multiplying power battery, is applicable to square magnification lithium ion battery structural design yet.
Embodiment 2 high rate performances and internal resistance comparative experiments
The present invention is to be experiment material with pure cobalt acid lithium and Delanium, and category-A is conventional way, and category-B is a method for making of the present invention, is laboratory sample with 75400 cylindrical multiplying power batteries.The 1C charging, 15C and 20C multiplying power discharging ring performance such as table 1 and shown in Figure 3.The 1C discharge capacity of battery is 160mAh.
Table 1 high rate performance and internal resistance comparative result
From chart, can obviously find out, adopt the internal resistance of the described battery of present embodiment to reduce obviously, be reduced to 72m Ω from 94m Ω; The multiplying power of 10C is brought up to 156.7mAh from 121.5mAh; The multiplying power of 15C improves more obvious, brings up to 153.2mAh from 112.6mAh.
Above content be in conjunction with concrete preferred implementation to further describing that the utility model is done, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be considered as belonging to protection range of the present utility model.
Claims (2)
1. a high rate lithium battery comprises shell, battery, it is characterized in that: described battery comprises the pole piece group that positive plate and negative plate are formed, and is provided with barrier film between positive/negative plate; Described positive plate or negative plate are connected with battery terminal by fixedly connected anode ear or negative electrode lug, and described anode ear is arranged at the middle part of positive plate, and described negative electrode lug is arranged at the middle part of negative plate.
2. high rate lithium battery as claimed in claim 1 is characterized in that: described high rate lithium battery is square or cylindrical high rate lithium battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020195513XU CN201725843U (en) | 2010-05-14 | 2010-05-14 | High-rate lithium battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020195513XU CN201725843U (en) | 2010-05-14 | 2010-05-14 | High-rate lithium battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201725843U true CN201725843U (en) | 2011-01-26 |
Family
ID=43494191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020195513XU Expired - Fee Related CN201725843U (en) | 2010-05-14 | 2010-05-14 | High-rate lithium battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201725843U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682447A (en) * | 2012-09-26 | 2014-03-26 | 江苏海四达电源股份有限公司 | Manufacturing method for vibration-resisting lithium ion battery |
| CN110707279A (en) * | 2019-10-14 | 2020-01-17 | 江西佰利威新能源科技有限公司 | Middle tab welding type lithium ion multiplying power battery |
-
2010
- 2010-05-14 CN CN201020195513XU patent/CN201725843U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103682447A (en) * | 2012-09-26 | 2014-03-26 | 江苏海四达电源股份有限公司 | Manufacturing method for vibration-resisting lithium ion battery |
| CN103682447B (en) * | 2012-09-26 | 2016-08-31 | 江苏海四达电源股份有限公司 | A kind of manufacture method of vibration resistance lithium ion battery |
| CN110707279A (en) * | 2019-10-14 | 2020-01-17 | 江西佰利威新能源科技有限公司 | Middle tab welding type lithium ion multiplying power 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: BAOJIA BATTERY TECHNOLOGY CO., LTD. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110126 Termination date: 20180514 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |