Button lithium ion battery and adapter plate suitable for button lithium ion battery

A lithium-ion battery, ion battery technology, applied in the field of adapters, can solve problems such as explosion, and achieve the effect of improving safety

Pending Publication Date: 2020-11-03
SHENZHEN GREPOW BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a portable battery, the button battery has higher safety requirements. During the research of the present invention, the inventor found that the button lithium-ion battery in the prior art is prone to internal short circuit, and there is a risk of explosion

Method used

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  • Button lithium ion battery and adapter plate suitable for button lithium ion battery
  • Button lithium ion battery and adapter plate suitable for button lithium ion battery
  • Button lithium ion battery and adapter plate suitable for button lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] see Figure 1-9 as shown,

[0053] This embodiment provides an adapter piece, which is applied to a button-type lithium-ion battery, and is used to connect the electrode of the battery core body 5 with the pole cover on the casing of the button-type lithium-ion battery, so as to realize the transfer of the electrodes .

[0054] The button-type lithium-ion battery mainly includes: a casing, a battery core body 5 , an electrolyte solution and two adapter pieces 4 .

[0055] The casing includes a positive electrode cover and a negative electrode cover that are buckled relatively. A cavity for placing the battery body 5 is formed between the positive electrode cover and the negative electrode cover. There is an insulating sealing ring between the positive electrode cover and the negative electrode cover. The positive electrode cover, Negative cover is generally made of metal material, such as but not limited to steel shell, positive cover and negative cover are not only t...

experiment example 1

[0078] At the pole lugs 6 of the battery core body 5 respectively adopt figure 1 The shown rectangular adapter piece 4 connects the pole caps.

experiment example 2

[0080] The difference from Experimental Example 1 is that one of the adapter pieces 4 of this Experimental Example 2 is as figure 1 As shown, the structure of another adapter piece 4 is as figure 2 shown;

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PUM

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Abstract

The invention relates to the field of lithium ion batteries, and discloses a button lithium ion battery and an adapter plate suitable for the button lithium ion battery. The battery comprises a shell;a battery cell body, comprising a positive plate, a negative plate and a diaphragm arranged between the positive plate and the negative plate at intervals; wherein the tabs of the positive plate andthe negative plate respectively extend out of two opposite end parts of the battery cell body, and an electrolyte infiltrating the battery cell body; two switching sheets, of which the ends with a first lengthare respectively connected with the tabs of the positive plate and the negative plate, and the end with a second length are respectively connected with the inner walls of the two pole covers,wherein a current limiting position is arranged between the first length tail end section and the second length tail end section on any one or two of the two switching sheets; in the cross sections,perpendicular to the length direction, of the adapter pieces, the position with the smallest area of the cross section is located at the current limiting position. By applying the technical scheme, the safety of the button lithium ion battery can be improved.

Description

technical field [0001] The invention relates to the field of lithium-ion battery manufacturing, in particular to a button-type lithium-ion battery and an adapter piece suitable for the button-type lithium-ion battery. Background technique [0002] With the increasing application of smart wearable products, people's demand for small-sized lithium-ion button-type rechargeable batteries (referred to as button-type lithium-ion batteries) is also increasing. Button lithium-ion batteries are increasingly used in smart wearable products, such as wireless Bluetooth headsets. Improving the safety performance of button batteries is a major issue that needs to be solved at present. [0003] As a portable battery, the button battery has higher safety requirements. During the research of the present invention, the inventors found that the button lithium ion battery in the prior art is prone to internal short circuit, and there is a risk of explosion. Contents of the invention [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/34H01M2/20H01M2/26H01M10/0525H01M10/0585H01M10/04
CPCH01M10/0427H01M10/0525H01M10/0585Y02E60/10Y02P70/50
Inventor 胡彦庆何安轩曾青
Owner SHENZHEN GREPOW BATTERY CO LTD
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