CN201369356Y - Secure high-rate discharge cylindrical lithium-ion battery set - Google Patents
Secure high-rate discharge cylindrical lithium-ion battery set Download PDFInfo
- Publication number
- CN201369356Y CN201369356Y CNU2009201138742U CN200920113874U CN201369356Y CN 201369356 Y CN201369356 Y CN 201369356Y CN U2009201138742 U CNU2009201138742 U CN U2009201138742U CN 200920113874 U CN200920113874 U CN 200920113874U CN 201369356 Y CN201369356 Y CN 201369356Y
- Authority
- CN
- China
- Prior art keywords
- ion battery
- battery
- lithium ion
- battery set
- safety
- 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
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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
Abstract
The utility model relates to a secure high-rate discharge cylindrical lithium-ion battery set. The battery set comprises N batteries which are arranged in linear shape or in Z shape, and N is more than or equal to 5; a casing is arranged outside each battery; adjacent positive and negative ends of the battery form the series connection structure through welded connecting sheets; and integral face pads are stuck outside the connecting sheets at both ends to stick exposed parts. The casing and the face pads are made of thermal-conduction insulation materials; the connecting sheets are made of nickel straps or nickel-plated steel strips or steel strips or copper strips; the wall thickness of the casing and the thickness of the face pads are respectively 0.05-2mm, and the cross-sectional area of the connecting sheet is 4mm<2>-20mm<2>. When the battery set is used under the normal condition, the design can prevent short-circuit and facilitates thermal conductivity and thermal dissipation, therefore, the temperature of each single battery is even, and the thermal dissipation is fast, thereby being helpful for prolonging the service life and improving the security of the battery set; when the battery set is used under the abnormal condition, instantaneous current of the battery set is large; when the current exceeds 60A, the connecting sheets are burned out, thereby achieving the security protection.
Description
Technical field
The utility model relates to technical field of lithium ion, particularly a kind of safety-type high-time discharging column lithium ion battery group.
Background technology
Along with the development of removable electric tool and other high-multiplying power discharge articles for use and the enhancing of environmental consciousness, the battery that is used for big multiplying power discharging changes from ni-mh and the nickel-cadmium cell lithium ion battery to high-energy more, more high density and environmental protection apace.And these batteries are as 18650,26650 based on column lithium ion battery.The power tool battery discharge-rate requires very high, with 18650 of single-unit 1200mAh is example, the discharge maximum current can reach 20A, because electric tool adopts many strings to combine working method with the lithium ion battery bag, its immediate current is higher, with five strings is example, transient current reaches 60A, under so big current discharge situation and the Joule heat that produces raises the temperature of battery, owing to the cylindrical battery special construction causes each regional temperature of battery inconsistent, thereby cause serious safety problem, consist of lithium battery and be widely used in key on the electric tool so how to solve the high-multiplying power discharge lithium ion battery.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of have easy heat radiation and even, the safe safety-type high-time discharging column lithium ion battery group of internal temperature with regard to being to overcome the defective of prior art.
For solving the problems of the technologies described above, the utility model has adopted following technical scheme:
A kind of safety-type high-time discharging column lithium ion battery group, it is characterized in that described battery pack saves the battery that is " one " font or the arrangement of " Z " font by N 〉=5 and forms, every batteries is with sleeve pipe outward, the end of adjacent positive and negative electrode battery forms cascaded structure by the brace of welding, and is pasted with all-in-one-piece pad in the brace outside at battery two ends.
Described sleeve pipe and face pad adopt heat-conducting insulation material to make.
The heat-conducting insulating silicon film is arranged described heat-conducting insulation material or thermal conductivity is good and the nonmetallic materials of insulation.
Described casing wall thickness and face mat thickness are 0.05～2mm.
Described brace employing nickel strap or nickel plated steel strip or steel band or copper strips are made.
The sectional area of described brace is 4mm
2～20mm
2
The beneficial effects of the utility model have been to use the sleeve pipe of heat conductive insulating and face pad to touch exposed parts; when under normal circumstances; can prevent battery short circuit; help heat conduction and heat radiation again; make each cell temperature evenly, heat radiation fast; help improving the useful life and the fail safe of battery pack; when battery pack is used under abnormal conditions; the transient current of battery pack is very big; when electric current surpasses 60A; brace fusing on the battery pack, thus reached protective effect, improved the safety in utilization of battery pack.
Description of drawings
Fig. 1 is the utility model " " font structure arranged cutaway view.
Fig. 2 is the three-dimensional structure diagram (shedding face pad and sleeve pipe) that the utility model " " font is arranged.
Fig. 3 is the three-dimensional structure diagram (shedding face pad and sleeve pipe) that the utility model " Z " font is arranged.
Fig. 4 is for adopting the battery pack high-multiplying power discharge comparison diagram of the utility model and correlation technique.
Embodiment
In conjunction with above-mentioned accompanying drawing the utility model embodiment is specifically described again below.
Safety-type high-time discharging column lithium ion battery group, every batteries 2 of described composition battery pack cover earlier installs sleeve pipe 1, saving battery with well by N=5 then is " one " font and rearranges (N is a positive integer), shown in Fig. 1～2, one of adjacent cell be anodal, one be negative pole, the positive and negative electrode end forms cascaded structure by the brace 3 of welding, and is pasted with all-in-one-piece in the brace at battery two ends outside and fills up 4 exsertion part touched.
Fig. 3 is for being " Z " font structure arranged figure, and the welding of brace 3 meets the series connection principle.
Sleeve pipe 1 and face pad 4 all select for use heat-conducting insulation material to make, and as the heat-conducting insulating silicon film, the thickness of the wall thickness of sleeve pipe and face pad is chosen by 0.05～2mm.Choose according to intensity, heat conductivility and overall dimensions, common intensity is demanding, wall thickness of choosing and thickness more greatly, otherwise littler, heat conductivility is demanding, choose thin, otherwise thicker.
Brace 3 adopts the nickel strap material, and its sectional area (thickness * width) is at 4mm
2～20mm
2Between choose, according to by size of current decision, by electric current big require sectional area more greatly, otherwise littler.
Weld the conducting strip (not shown) on the brace of the utility model battery pack again, this conducting strip again with wiring board welding conducting, power brick.
Fig. 4 is the power brick high-multiplying power discharge comparison diagram of the utility model and correlation technique, it is high-multiplying power discharge cycle life curve, curve A is the life curve of the utility model power brick among the figure, curve B is the life curve of conventional batteries bag, and the life-span of the present utility model as can be seen is higher than the prior art life-span.
Claims (6)
1, a kind of safety-type high-time discharging column lithium ion battery group, it is characterized in that described battery pack saves the battery (2) that is " one " font or the arrangement of " Z " font by N 〉=5 and forms, every batteries is with sleeve pipe (1) outward, the end of adjacent positive and negative electrode battery forms cascaded structure by the brace (3) of welding, and is pasted with all-in-one-piece pad (4) in the brace outside at battery two ends.
2, safety-type high-time discharging column lithium ion battery group according to claim 1 is characterized in that described sleeve pipe (1) and face pad (4) adopt heat-conducting insulation material to make.
3, safety-type high-time discharging column lithium ion battery group according to claim 2 is characterized in that described heat-conducting insulation material has the heat-conducting insulating silicon film or thermal conductivity is good and the nonmetallic materials of insulation.
4, safety-type high-time discharging column lithium ion battery group according to claim 1 and 2 is characterized in that described sleeve pipe (1) wall thickness and face pad (4) thickness are 0.05～2mm.
5, safety-type high-time discharging column lithium ion battery group according to claim 1 is characterized in that described brace (3) adopts nickel strap or nickel plated steel strip or steel band or copper strips to make.
6, safety-type high-time discharging column lithium ion battery group according to claim 1 or 5, the sectional area that it is characterized in that described brace (3) is 4mm
2～20mm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201138742U CN201369356Y (en) | 2009-02-18 | 2009-02-18 | Secure high-rate discharge cylindrical lithium-ion battery set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201138742U CN201369356Y (en) | 2009-02-18 | 2009-02-18 | Secure high-rate discharge cylindrical lithium-ion battery set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201369356Y true CN201369356Y (en) | 2009-12-23 |
Family
ID=41488247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201138742U Expired - Fee Related CN201369356Y (en) | 2009-02-18 | 2009-02-18 | Secure high-rate discharge cylindrical lithium-ion battery set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201369356Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134774A (en) * | 2014-07-16 | 2014-11-05 | 苏州宇量电池有限公司 | Soldering lug having fusing function for connecting batteries |
| CN106252536A (en) * | 2016-08-29 | 2016-12-21 | 东莞力朗电池科技有限公司 | The thermal balance data acquisition battery case of replaceable units battery |
| CN106876643A (en) * | 2017-03-24 | 2017-06-20 | 帅福得（珠海保税区）电池有限公司 | A kind of new 9V batteries and its preparation technology |
| CN115911781A (en) * | 2022-11-11 | 2023-04-04 | 东莞力朗电池科技有限公司 | Fuse type lithium battery module capable of preventing electric arc sputtering |
-
2009
- 2009-02-18 CN CNU2009201138742U patent/CN201369356Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104134774A (en) * | 2014-07-16 | 2014-11-05 | 苏州宇量电池有限公司 | Soldering lug having fusing function for connecting batteries |
| CN106252536A (en) * | 2016-08-29 | 2016-12-21 | 东莞力朗电池科技有限公司 | The thermal balance data acquisition battery case of replaceable units battery |
| CN106252536B (en) * | 2016-08-29 | 2018-12-18 | 东莞力朗电池科技有限公司 | The heat balance number of replaceable units battery is according to acquisition battery case |
| CN106876643A (en) * | 2017-03-24 | 2017-06-20 | 帅福得（珠海保税区）电池有限公司 | A kind of new 9V batteries and its preparation technology |
| CN115911781A (en) * | 2022-11-11 | 2023-04-04 | 东莞力朗电池科技有限公司 | Fuse type lithium battery module capable of preventing electric arc sputtering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20130218 |