CN206989861U - A kind of device for testing lithium ion battery discharge and recharge expansion rate - Google Patents
A kind of device for testing lithium ion battery discharge and recharge expansion rate Download PDFInfo
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- CN206989861U CN206989861U CN201720822387.8U CN201720822387U CN206989861U CN 206989861 U CN206989861 U CN 206989861U CN 201720822387 U CN201720822387 U CN 201720822387U CN 206989861 U CN206989861 U CN 206989861U
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- lithium ion
- ion battery
- expansion rate
- battery discharge
- recharge
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Abstract
The utility model is a kind of device for testing lithium ion battery discharge and recharge expansion rate, and the device includes placement platform, balance sheet glass, micrometer and support, described micrometer and the surface of placement platform middle position is fixed on by support vertical；The balance sheet glass is to be placed in when testing cell thickness on battery surface.Device of the present utility model easily operates, and versatility is high, simple and easy, and energy rapid and accurate determination goes out lithium ion battery discharge and recharge expansion rate.
Description
Technical field
The utility model belongs to technical field of lithium ion, more particularly to a kind of test lithium ion battery charge and discharge electric expansion
The device of rate.
Background technology
Lithium ion battery is a kind of energy being just most widely used at present.In Portable power source, smart mobile phone, pen
Remember that this computer, tablet personal computer, camera and other portable type electronic product fields constantly expand popularization and application.
Found by studying for a long period of time, lithium ion battery can expand during discharge and recharge use, for screen
Electrical appliance for, such as mobile phone, tablet personal computer, car cut out navigator, to cell thickness change it is more sensitive.Lithium-ion electric
Pond expansion can cause portable type electronic product to extrude screen, watermark gently then occur, heavy then cause screen to rupture, or even cause battery
The potential safety hazards such as burning, blast.
Therefore, the parameter related to lithium ion battery expansion how is monitored, to be carried out to the expansion process of lithium ion battery
Research, expansion during design to battery are accurately estimated, reasonable and maximally utilise design space, are research and development technology people
The problem of member need to consider first.
The content of the invention
The utility model provides a kind of device for testing lithium ion battery discharge and recharge expansion rate, and the device can be examined accurately
Measure the maximum of lithium ion battery expansion.The monitoring parameter related to lithium ion battery expansion, with to the swollen of lithium ion battery
Swollen rate is studied, and expansion during design to battery is accurately estimated, and rationally and maximally utilises design space.
The technical solution of the utility model is a kind of device for testing lithium ion battery discharge and recharge expansion rate, the device bag
Placement platform, balance sheet glass, micrometer and support are included, described micrometer is fixed on placement platform center by support vertical
The surface of position；The balance sheet glass is to be placed in when testing cell thickness on battery surface.
Preferably, the placement platform is marble countertop.
Preferably, the balance sheet glass is square, carries out grinding process around it.
Preferably, the balance glass chip size is less than the size of test battery.
Preferably, the micrometer is digital display, and has memory function.
It is that battery surface is damaged in the contact for avoiding micrometer during measurement, adds one block of balance glass in battery surface during test
Piece.
Device of the present utility model easily operates, and versatility is high, simple and easy, and energy rapid and accurate determination goes out lithium ion battery
Discharge and recharge expansion rate.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.1- placement platforms, 2- batteries, 3- balances sheet glass, 4- thousand divide in figure
Chi, 5- supports.
Embodiment
Below in conjunction with the accompanying drawings, to describe the technical solution of the utility model in detail.
The original depth δ 0 of battery is tested with amesdial first.
As shown in figure 1, a kind of device for testing lithium ion battery discharge and recharge expansion rate of the present utility model, including place flat
Platform, balance sheet glass, micrometer and support.During test, the battery 2 of required test is placed on placement platform 1, then in electricity
Thick × long × a width of 3.0mm × 20mm × 20mm of block specifications balance sheet glass 3 is first put on the surface of pond 2, then by micrometer 4
Contact contacts with the surface of glass, then presses micrometer 4 and it is zeroed.Change in the numerical value final entry test process of micrometer 4
Maximum δ 1, thus can calculate the maximum δ 0 × 100% of expansion rate δ 1/ of battery thickness in charge and discharge process.
Above content is only to design example of the present utility model and explanation, the technology of affiliated the art
Personnel are made various modifications or supplement to described specific embodiment or substituted using similar mode, without departing from
The design of invention surmounts scope defined in the claims, all should belong to the scope of protection of the utility model.
Claims (5)
1. it is a kind of test lithium ion battery discharge and recharge expansion rate device, the device include placement platform, balance sheet glass, thousand points
Chi and support, it is characterised in that described micrometer is fixed on the surface of placement platform middle position by support vertical；Institute
It is to be placed in when testing cell thickness on battery surface to state balance sheet glass.
2. a kind of device for testing lithium ion battery discharge and recharge expansion rate according to claim 1, it is characterised in that described
Placement platform is marble countertop.
3. a kind of device for testing lithium ion battery discharge and recharge expansion rate according to claim 1, it is characterised in that described
Sheet glass is balanced as square, carries out grinding process around it.
4. a kind of device for testing lithium ion battery discharge and recharge expansion rate according to claim 1, it is characterised in that described
Balance the size that glass chip size is less than test battery.
5. a kind of device for testing lithium ion battery discharge and recharge expansion rate according to claim 1, it is characterised in that described
Micrometer is digital display, and has memory function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822387.8U CN206989861U (en) | 2017-07-09 | 2017-07-09 | A kind of device for testing lithium ion battery discharge and recharge expansion rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720822387.8U CN206989861U (en) | 2017-07-09 | 2017-07-09 | A kind of device for testing lithium ion battery discharge and recharge expansion rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206989861U true CN206989861U (en) | 2018-02-09 |
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ID=61404752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720822387.8U Active CN206989861U (en) | 2017-07-09 | 2017-07-09 | A kind of device for testing lithium ion battery discharge and recharge expansion rate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206989861U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959360A (en) * | 2019-03-20 | 2019-07-02 | 上海卡耐新能源有限公司 | A kind of measuring system and method for soft package lithium battery cathode expansion rate |
| CN109974655A (en) * | 2019-02-27 | 2019-07-05 | 天津锦美碳材科技发展有限公司 | A kind of apparatus and method for of online no pressure detection lithium battery silicon-carbon cathode pole piece expansion |
| CN110082681A (en) * | 2019-04-30 | 2019-08-02 | 上海卡耐新能源有限公司 | A kind of method of in-situ test battery cathode expansion rate |
| CN110987789A (en) * | 2018-10-02 | 2020-04-10 | 江西格林德能源有限公司 | Lithium ion battery pole piece adhesion testing device and operation method |
| CN111928805A (en) * | 2020-07-31 | 2020-11-13 | 中国科学院宁波材料技术与工程研究所 | Method for testing and analyzing expansion rate of silicon-based negative electrode material |
-
2017
- 2017-07-09 CN CN201720822387.8U patent/CN206989861U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987789A (en) * | 2018-10-02 | 2020-04-10 | 江西格林德能源有限公司 | Lithium ion battery pole piece adhesion testing device and operation method |
| CN109974655A (en) * | 2019-02-27 | 2019-07-05 | 天津锦美碳材科技发展有限公司 | A kind of apparatus and method for of online no pressure detection lithium battery silicon-carbon cathode pole piece expansion |
| CN109959360A (en) * | 2019-03-20 | 2019-07-02 | 上海卡耐新能源有限公司 | A kind of measuring system and method for soft package lithium battery cathode expansion rate |
| CN109959360B (en) * | 2019-03-20 | 2021-06-04 | 上海卡耐新能源有限公司 | System and method for measuring expansion rate of negative electrode of soft package lithium battery |
| CN110082681A (en) * | 2019-04-30 | 2019-08-02 | 上海卡耐新能源有限公司 | A kind of method of in-situ test battery cathode expansion rate |
| CN111928805A (en) * | 2020-07-31 | 2020-11-13 | 中国科学院宁波材料技术与工程研究所 | Method for testing and analyzing expansion rate of silicon-based negative electrode material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518105 4th Floor, Building A2, Liyuan Bay Industrial Park, 168 Honghu Road, Yanchuan, Songgang, Baoan District, Shenzhen City, Guangdong Province Patentee after: Shenzhen Greende Energy Group Co., Ltd. Address before: 518105 4th Floor, Building A2, Liyuan Bay Industrial Park, 168 Honghu Road, Yanchuan, Songgang, Baoan District, Shenzhen City, Guangdong Province Patentee before: Shenzhen Green's moral limited energy company |
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| CP01 | Change in the name or title of a patent holder |