CN112834108A - Method for detecting internal pressure of shell battery - Google Patents
Method for detecting internal pressure of shell battery Download PDFInfo
- Publication number
- CN112834108A CN112834108A CN202110026036.7A CN202110026036A CN112834108A CN 112834108 A CN112834108 A CN 112834108A CN 202110026036 A CN202110026036 A CN 202110026036A CN 112834108 A CN112834108 A CN 112834108A
- Authority
- CN
- China
- Prior art keywords
- battery
- gas
- shell
- liquid separator
- storage tank
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000001914 filtration Methods 0.000 claims description 19
- 239000012528 membrane Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
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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 invention discloses a method for detecting the internal pressure of a shell battery, which is based on the shell battery formed by sealing a battery body, a battery shell and a battery shell cover plate, wherein a gas-liquid separator is arranged on the battery shell cover plate, a gas-pressure meter is arranged on the gas-liquid separator, a liquid storage tank filled with electrolyte is arranged on the battery shell cover plate, a gas storage tank filled with gas is arranged on the liquid storage tank, and finally the battery body is discharged and the pressure is detected by the gas-pressure meter in due time; the method can detect the internal pressure of the shell battery when the shell battery is discharged so as to prevent potential safety hazards, prevent safety accidents caused by overlarge pressure and study the influence of different pressures on the electrical property of the shell battery.
Description
Technical Field
The invention belongs to the field of shell batteries, and particularly relates to a method for detecting internal pressure of a shell battery.
Background
At present, in a shell battery formed by sealing a battery body, a battery shell and a battery shell cover plate, potential safety hazards may be caused by the pressure inside the battery shell in the use process, and the electrical property may also be affected.
Therefore, the pressure inside the battery case needs to be detected timely when the battery case is used, so as to prevent potential safety hazards.
Disclosure of Invention
The invention provides a method for detecting the internal pressure of a shell battery, which can prevent potential safety hazards and research the influence of pressure on electrical performance in a mode of timely detecting the internal pressure of a battery shell.
The technical scheme adopted by the invention for solving the technical problems is as follows: a method for detecting the internal pressure of a shell battery is a shell battery formed by sealing a battery body, a battery shell and a battery shell cover plate, and comprises the following steps: (1) installing a gas-liquid separator on the battery shell cover plate; (2) a gas-liquid separator is provided with a gas-pressure meter; (3) a liquid storage tank filled with electrolyte is arranged on the cover plate of the battery shell, and a gas storage tank filled with gas is arranged on the liquid storage tank; (4) discharging the battery body and detecting the pressure by the barometer at proper time.
In the method for detecting the internal pressure of the shell battery, the gas-liquid separator is a microporous filtering gas-liquid separator.
The method for detecting the internal pressure of the shell battery comprises the steps that a microporous filtering gas-liquid separator is formed by a cylindrical gas-liquid separator shell and a filtering membrane layer installed in the gas-liquid separator shell through a sealing ring, and the filtering membrane layer is formed by overlapping a plurality of microporous filtering membranes.
In general, the above technical solutions contemplated by the present invention can achieve the following beneficial effects:
the invention detects the internal pressure of the battery shell through the barometer, prevents the electrolyte in the battery body from entering the barometer through the gas-liquid separator, allows the gas to freely enter and exit the barometer, discharges the shell battery, can timely detect the internal pressure of the shell battery so as to prevent potential safety hazards, prevent safety accidents caused by overlarge pressure and can research the influence of different pressures on the electrical property of the shell battery.
Drawings
FIG. 1 is a schematic view of the pressure detection principle of the present invention;
FIG. 2 is a side view of the microporous filtration gas-liquid separator of the present invention;
FIG. 3 is a top view of a microporous filtration gas-liquid separator of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, the method for detecting internal pressure of a case battery disclosed by the invention is a case battery formed by sealing a battery body, a battery case and a battery case cover plate, and comprises the following steps:
(1) and a gas-liquid separator is arranged on the cover plate of the battery shell and used for preventing electrolyte in the battery body from entering the barometer and allowing gas to freely enter and exit the barometer.
(2) And a gas-liquid separator is provided with a gas-pressure meter for detecting the internal pressure of the battery shell.
(3) A liquid storage tank filled with electrolyte is arranged on the cover plate of the battery shell, a gas storage tank filled with gas is arranged on the liquid storage tank, and the electrolyte in the liquid storage tank is pushed into the battery shell through the gas in the gas storage tank to activate the battery.
(4) Discharging the battery body and detecting the pressure by the barometer at proper time.
As shown in fig. 2 and 3, the gas-liquid separator may be a microporous filtration gas-liquid separator or another gas-liquid separator. Wherein millipore filtration vapour and liquid separator comprises columniform vapour and liquid separator casing and the filtration membrane layer of installing in the vapour and liquid separator casing through the sealing washer, filtration membrane layer seals in the filter casing, filtration membrane layer form by the stack of a plurality of millipore filtration diaphragm, the change of the filtration membrane of being convenient for.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. The utility model provides a detection method of shell battery internal pressure, based on battery body, battery case and the sealed shell battery that forms of battery case apron, its characterized in that: comprises the following steps
(1) Installing a gas-liquid separator on the battery shell cover plate;
(2) a gas-liquid separator is provided with a gas-pressure meter;
(3) a liquid storage tank filled with electrolyte is arranged on the cover plate of the battery shell, and a gas storage tank filled with gas is arranged on the liquid storage tank;
(4) discharging the battery body, and detecting the pressure through the barometer.
2. The method of claim 1, wherein the gas-liquid separator is a microporous filtration gas-liquid separator.
3. The method according to claim 2, wherein the microporous filtering gas-liquid separator comprises a cylindrical gas-liquid separator casing and a filtering membrane layer mounted in the gas-liquid separator casing through a sealing ring, and the filtering membrane layer is formed by stacking a plurality of microporous filtering membranes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026036.7A CN112834108A (en) | 2021-01-08 | 2021-01-08 | Method for detecting internal pressure of shell battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110026036.7A CN112834108A (en) | 2021-01-08 | 2021-01-08 | Method for detecting internal pressure of shell battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112834108A true CN112834108A (en) | 2021-05-25 |
Family
ID=75929242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110026036.7A Pending CN112834108A (en) | 2021-01-08 | 2021-01-08 | Method for detecting internal pressure of shell battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112834108A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207504031U (en) * | 2017-12-06 | 2018-06-15 | 深圳市科达利实业股份有限公司 | A kind of battery cover plate structure and battery |
| CN207834510U (en) * | 2017-07-20 | 2018-09-07 | 合肥国轩高科动力能源有限公司 | A kind of interior compression testing device for lithium ion battery |
-
2021
- 2021-01-08 CN CN202110026036.7A patent/CN112834108A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207834510U (en) * | 2017-07-20 | 2018-09-07 | 合肥国轩高科动力能源有限公司 | A kind of interior compression testing device for lithium ion battery |
| CN207504031U (en) * | 2017-12-06 | 2018-06-15 | 深圳市科达利实业股份有限公司 | A kind of battery cover plate structure and battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210525 |