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A kind of bromide pouch battery and its assembly method

A soft-pack battery and bromide technology, applied in the direction of batteries, battery electrodes, secondary batteries, etc., can solve the problems of rising raw materials for lithium-ion power batteries, poor safety of lithium-ion power batteries, and restrictions on the promotion and application of electric vehicles. The effect of mature production technology, high specific energy and low price

Active Publication Date: 2020-07-28
HENGDIAN GRP DMEGC MAGNETICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] At present, the battery, as the heart of electric vehicles, is the current investment hotspot. Lithium-ion power batteries were once considered to be the most potential power batteries for electric vehicles; however, with the development of nickel, cobalt, lithium and other precious metals, lithium-ion power The sharp increase in battery raw materials has restricted the promotion and application of electric vehicles; the poor safety of lithium-ion power batteries and the poor economic benefits of recycling are also important factors restricting its development

Method used

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  • A kind of bromide pouch battery and its assembly method
  • A kind of bromide pouch battery and its assembly method
  • A kind of bromide pouch battery and its assembly method

Examples

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Effect test

Embodiment 1

[0118] A battery comprising a carbon electrode, a magnesium negative electrode, a polyvinylidene fluoride separator, a positive electrode tab, a negative electrode tab, an electrolyte and an aluminum plastic film; the carbon electrode includes an aluminum foil and a bromide positive electrode component coated on the surface of the aluminum foil.

[0119] The bromide cathode component is made up of the following components by weight: 65 parts of tetraethylammonium tribromide, high specific surface area activated carbon (the specific surface area is 3500m 2 / g) 21 parts, 9 parts of conductive carbon black and 5 parts of PVDF; the electrolyte is prepared by mixing anhydrous aluminum chloride and 1-ethyl-3 methyl-imidazole chloride salt in a molar ratio of 2:1.

[0120] The positive electrode containing the bromide positive electrode component adopts the following preparation method:

[0121] (1) Put tetraethylammonium tribromide, activated carbon with high specific surface area, ...

Embodiment 2

[0136] Compared with Example 1, in the preparation method of bromide, raw material organic salt is N-ethyl-N-butylmorpholine bromide, and bromide is N-ethyl-N-butylmorpholine tribromide , others are identical with embodiment 1.

Embodiment 3

[0138] Compared with Example 1, in the preparation method of bromide, raw material organic salt is 1-ethyl-3-methyl-imidazole bromide, and bromide is 1-ethyl-3-methyl-imidazole tribromide , others are identical with embodiment 1.

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Abstract

The invention relates to a bromide soft-pack battery and an assembly method thereof. The battery comprises: a battery electrode group, a positive electrode ear, a negative electrode ear, an electrolyte and an aluminum-plastic film; the battery electrode group includes a positive electrode, a negative electrode and a diaphragm The positive electrode includes a positive electrode current collector and a bromide positive electrode component coated on the surface of the positive electrode current collector; the positive active material in the bromide positive electrode component is bromide, and the bromide is formed by bromine simple substance and organic salt The response is obtained. The present invention adopts the bromide produced by the reaction of bromine simple substance and organic salt as the positive electrode active material, and when it is used in the battery, the specific energy of the secondary battery can be greatly improved, and rapid charge and discharge can be realized, the cycle life is long, and the cost of raw materials is low .

Description

technical field [0001] The invention relates to the field of secondary batteries, in particular to a battery and an assembly method thereof, in particular to a bromide pouch battery and an assembly method thereof. Background technique [0002] At present, the battery, as the heart of electric vehicles, is the current investment hotspot. Lithium-ion power batteries were once considered to be the most potential power batteries for electric vehicles; however, with the development of nickel, cobalt, lithium and other precious metals, lithium-ion power The sharp increase in battery raw materials has restricted the promotion and application of electric vehicles; the poor safety of lithium-ion power batteries and the poor economic benefits of recycling are also important factors restricting its development. Seeking low-cost, green, and safe power battery solutions is still the primary problem for electric vehicles. [0003] Halogen is an element that is abundantly stored in the ea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/58H01M10/0525H01M10/058
CPCH01M4/582H01M10/0525H01M10/058H01M2220/20Y02E60/10Y02P70/50
Inventor 唐怀远王康彦王媛珍谢成璐金源
Owner HENGDIAN GRP DMEGC MAGNETICS CO LTD