Method for verifying performance of reference electrodes of soft package battery

A technology of reference electrodes and soft-pack batteries, which is applied in secondary batteries, circuits, and measurement electronics, can solve the problems of reliability analysis of rare reference electrodes, and achieve reliability, practicability, and reliability improvement Effect

Inactive Publication Date: 2018-05-22
SHANXI CHANGZHENG POWER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lithium battery manufacturers at home and abroad have mostly invented reference electrodes of different types. Through various electrochemical tests, the electrode systems inside the battery are studied and analyzed, but the reliability of reference electrodes is rarely analyzed.

Method used

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  • Method for verifying performance of reference electrodes of soft package battery
  • Method for verifying performance of reference electrodes of soft package battery

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

[0034] Such as figure 1 As shown, a method for verifying the performance of a pouch battery reference electrode according to an embodiment of the present invention includes the following steps:

[0035] S1: Two copper wires of a certain size are used as the base, which are pre-embedded inside the cell during the cell manufacturing process;

[0036] S2: After the cell is manufactured, the cell is adjusted to a certain charging state, and lithium is electrochemically deposited on two copper wi...

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Abstract

The invention discloses a method for verifying the performance of the reference electrodes of a soft package battery. The method includes the following steps that: two copper wires with a certain sizeare adopted as substrates and pre-embedded in a battery cell during the production process of the battery cell; after the battery cell is manufactured, the battery cell is adjusted to a certain stateof charge, lithium is electrochemically deposited on the two copper wires one by one with current and time controlled, so that a uniform lithium layer of a certain thickness is obtained, and therefore, two reference electrodes can be obtained; and the reliability and practicality of the two reference electrodes are evaluated through voltage tests between the two reference electrodes and electrochemical performance tests between the two reference electrodes, and a positive pole and a negative pole. With the method of the invention adopted, concerns on the reliability and practicality of the reference electrodes can be fundamentally defused, and a foundation can be laid for the reliability of the electrochemical performance test results of the reference electrodes inside the battery cell.

Description

technical field [0001] The invention relates to the technical field of lithium ion batteries, in particular to a method for verifying the performance of a soft-pack battery reference electrode. Background technique [0002] Lithium-ion batteries are widely used in notebook computers, mobile phones, cameras, instruments, electric tools and other terminals due to their excellent characteristics such as high energy density, high output voltage, low self-discharge rate, long service life, no memory effect and environmental friendliness. equipment. Its market share continues to expand, gradually replacing nickel-cadmium (Ni-Cd) and metal nickel-hydride (Ni-MH) batteries, occupying a dominant position. [0003] At present, there are soft packs, steel shells, aluminum shells and other types of lithium-ion batteries on the market. Among them, soft-packed lithium-ion batteries have the advantages of good safety performance, light weight, large capacity, small internal resistance, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/36H01M10/0525
CPCG01R31/385H01M10/0525Y02E60/10
Inventor 孙磊安富强
Owner SHANXI CHANGZHENG POWER TECH CO LTD
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