CN2921823Y - Apparatus for detecting lithium ion battery internal gas production - Google Patents
Apparatus for detecting lithium ion battery internal gas production Download PDFInfo
- Publication number
- CN2921823Y CN2921823Y CN 200620026812 CN200620026812U CN2921823Y CN 2921823 Y CN2921823 Y CN 2921823Y CN 200620026812 CN200620026812 CN 200620026812 CN 200620026812 U CN200620026812 U CN 200620026812U CN 2921823 Y CN2921823 Y CN 2921823Y
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- cavity
- lithium ion
- gas production
- ion battery
- pick
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- Expired - Fee Related
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- Y02E60/12—
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Abstract
The utility model discloses an apparatus for detecting lithium ion battery internal gas production, comprising a cavity. A via hole is arranged on the upper surface of the cavity, and a sealing plug is arranged inside the via hole. The cavity inside is provided with a baffle which is pushed in by the lower end of the cavity and fixedly connected with a push-pull rod, and the calibration is respectively arranged on the push-pull rod and the side surface of the cavity. The end faces of the sealing plug and the baffle are respectively provided with a metal wire used to connect the cathode and anode of a battery. The utility model is simple in structure and convenient in operation, which can effectively solve the measurement problem of lithium ion battery internal gas production.
Description
Technical field
The utility model relates to a kind of device that detects the inside battery gas production rate, particularly a kind of device that detects gas production rate inside lithium ion battery.
Background technology
Lithium ion battery is made up of elements such as positive pole, negative pole, electrolytic solution, barrier films.At present, the anodal transition metal oxides such as cobalt acid lithium, nickle cobalt lithium manganate that use; Negative pole uses carbon or materials such as graphite and metal; Electrolytic solution uses nonaqueous electrolyte; Barrier film is the porous membrane of materials such as polypropylene.Well-known lithium ion battery is in charge and discharge process, the positive and negative electrode material can react with electrolytic solution, produce gas simultaneously, the pressure of gas acquires a certain degree and will cause battery case to break to cause security incident, therefore, have only the gas production rate of grasping battery comprehensively and accurately, can produce the battery case of suitable compressive strength.But, up to the present, still do not have a kind of effective, conveniently way solves this technical matters.
Summary of the invention
The purpose of this utility model just in order to solve above-mentioned technical matters, provides a kind of device that can easy, quick, accurately detect gas production rate inside lithium ion battery.
The utility model is achieved by following technical proposals:
The pick-up unit of the utility model gas production rate inside lithium ion battery, comprise cavity, the upper surface of described cavity is provided with through hole, be provided with sealing-plug in the described through hole, be provided with the baffle plate of fixedlying connected that pushes by the cavity bottom in the described cavity with pull bar, be respectively arranged with scale on the side surface of described pull bar and cavity, the end face of described sealing-plug is respectively arranged with the metal lead wire that is used to be connected battery plus-negative plate with the end face of baffle plate.
Described cavity is a rectangular shape.
Described cavity is a cylindrical shape.
Described metal lead wire is copper, nickel or aluminium a kind of making wherein.
Described pick-up unit is that tygon, teflon or plastics a kind of material is wherein made.
The beneficial effects of the utility model are:
1 the utility model cavity is set to cuboid or cylindrical shape according to the shape of battery, helps difform battery core body and puts into easily when detecting.2. be provided with sealing-plug in the upper surface through hole of cavity, when detected battery core body produced gas, the baffle plate that gas promotes to be connected with pull bar in the cavity of sealing moved down, thereby reached the purpose of detected gas.
3. be respectively arranged with scale on the pull bar and on the side surface of cavity, the scale before detecting with detect after scale not simultaneously, the variation that can calculate its numerical value generation easily is the size of gas production rate.
4. the utility model pick-up unit material therefor is extensive, and is cheap.
5. processing technology is simple, is easy to produce, and can repeatedly recycles.
Description of drawings
Fig. 1 is the pick-up unit surface structure synoptic diagram of square cavity.
Fig. 2 is the pick-up unit surface structure synoptic diagram of circular cavity.
Reference numeral: 1 cavity, 2 through holes, 3 sealing-plugs, 4 pull bars, 5 baffle plates, 6 metal lead wires
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As shown in the figure, the pick-up unit of the utility model gas production rate inside lithium ion battery comprises cavity 1, and described cavity 1 can also can be a cylindrical shape (as shown in Figure 2) for rectangular parallelepiped (as shown in Figure 1), the upper surface of described cavity 1 is provided with through hole 2, is provided with sealing-plug 3 in the described through hole 2; When needs detect, detected battery core body is put into from the bottom of cavity 1 in the described cavity 1, pushed the baffle plate 5 of fixedlying connected then with pull bar 4; Be respectively arranged with scale on the side surface of described pull bar 4 and cavity 1, when detected battery core body produces gas, the baffle plate 5 that gas promotes to be connected with pull bar 4 in the cavity 1 of sealing moves down, scale changes, the size that shows its gas production rate, thus the gas production rate of inside battery can be obtained fast; The end face of the end face of described sealing-plug 3 and baffle plate 5 can be respectively arranged with the metal lead wire 6 that is used to be connected battery plus-negative plate, and described metal lead wire 6 is made for copper, nickel or aluminium a kind of material wherein.
The utility model pick-up unit can be made for tygon, teflon or plastic or other material.Its profile is copied the shell of lithium ion battery, and can dismantle easily.
Claims (5)
1. the pick-up unit of a gas production rate inside lithium ion battery, comprise cavity, it is characterized in that, the upper surface of described cavity is provided with through hole, be provided with sealing-plug in the described through hole, be provided with the baffle plate of fixedlying connected with pull bar that pushes by the cavity bottom in the described cavity, be respectively arranged with scale on the side surface of described pull bar and cavity, the end face of described sealing-plug is respectively arranged with the metal lead wire that is used to be connected battery plus-negative plate with the end face of baffle plate.
2. the pick-up unit of gas production rate inside lithium ion battery according to claim 1 is characterized in that, described cavity is a rectangular shape.
3. the pick-up unit of gas production rate inside lithium ion battery according to claim 1 is characterized in that, described cavity is a cylindrical shape.
4. the pick-up unit of gas production rate inside lithium ion battery according to claim 1 is characterized in that, described metal lead wire is copper, nickel or aluminium a kind of making wherein.
5. the pick-up unit of gas production rate inside lithium ion battery according to claim 1 is characterized in that, described pick-up unit is tygon, teflon or plastics a kind of making wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026812 CN2921823Y (en) | 2006-07-21 | 2006-07-21 | Apparatus for detecting lithium ion battery internal gas production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620026812 CN2921823Y (en) | 2006-07-21 | 2006-07-21 | Apparatus for detecting lithium ion battery internal gas production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2921823Y true CN2921823Y (en) | 2007-07-11 |
Family
ID=38254303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620026812 Expired - Fee Related CN2921823Y (en) | 2006-07-21 | 2006-07-21 | Apparatus for detecting lithium ion battery internal gas production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2921823Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109238918A (en) * | 2018-08-21 | 2019-01-18 | 天津力神电池股份有限公司 | A kind of evaluation method of negative electrode of lithium ion battery surface reaction activity |
| CN109540244A (en) * | 2018-07-03 | 2019-03-29 | 蜂巢能源科技有限公司 | Battery check device, battery detection equipment and battery detecting structure |
-
2006
- 2006-07-21 CN CN 200620026812 patent/CN2921823Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109540244A (en) * | 2018-07-03 | 2019-03-29 | 蜂巢能源科技有限公司 | Battery check device, battery detection equipment and battery detecting structure |
| CN109238918A (en) * | 2018-08-21 | 2019-01-18 | 天津力神电池股份有限公司 | A kind of evaluation method of negative electrode of lithium ion battery surface reaction activity |
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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: 20070711 Termination date: 20120721 |