A kind of preparation method of lithium battery

A lithium battery and lithium salt technology, applied in the manufacture of electrolyte batteries, secondary batteries, battery pack components, etc., can solve the problems of accelerating ion contact with positive and negative electrodes, physical damage to workers, short service life, etc., and achieve higher viscosity. , Improve the performance of lithium battery, improve the effect of performance

Active Publication Date: 2021-11-05
攸攸新能源科技(金华)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to make up for the deficiencies of the existing technology, solve the short service life of lithium batteries, cause great damage to the staff's body when replacing the electrolyte, slow the movement of ions in the electrolyte, and speed up the speed at which ions contact the positive and negative electrodes intermittently improve the use of lithium batteries The problem of service life, the preparation method of a kind of lithium battery that the present invention proposes

Method used

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  • A kind of preparation method of lithium battery
  • A kind of preparation method of lithium battery
  • A kind of preparation method of lithium battery

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preparation example Construction

[0025] Such as Figure 1 to Figure 3 Shown, the preparation method of a kind of lithium battery described in the present invention, the electrolytic solution of described lithium battery comprises lithium salt, organic solvent, organic free radical and additive; Described organic solvent comprises following mass fraction raw material composition: ethyl formate 20-22 parts, 10-12 parts of propyl formate, 18-20 parts of methyl acetate, 30-35 parts of propyl acetate and 11-22 parts of ethylene carbonate; the lithium salt is lithium tetrafluoroborate, ethyl formate Its chemical structure has active carbonyl and ester groups, which makes ethyl formate more active overall, and can endow organic solvents with active types, thereby accelerating the flow of ions and improving the performance of lithium batteries. Propyl formate has a fruity effect when diluted to a certain extent. When replacing the lithium battery electrolyte, its concentration can be judged by the fragrance of the el...

Embodiment approach

[0032]As an embodiment of the present invention, the annular battery includes an annular barrel 1, a sealing cover 2 and a negative pole 11; the negative pole 11 is fixed in the middle of the annular barrel 1 through insulating rubber; A positive pole ring 12 is fixedly connected; the positive pole ring 12 is fixedly connected in the annular barrel 1 by insulating rubber, and the positive pole ring 12 is the positive pole of the annular battery; the negative pole column 11 is the negative pole of the annular battery; A diaphragm 13 is provided; the diaphragm 13 is designed in a flower shape, and the space inside the positive electrode ring 12 is evenly divided into eight parts; and the surface of the diaphragm 13 is fixed on the surface of the negative pole 11 and the positive electrode ring 12; Through holes; the surface of the negative pole 11 is fixed with uniformly arranged negative plates 14; the inner wall of the positive ring 12 is fixed with uniformly arranged positive ...

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Abstract

The invention belongs to the technical field of lithium batteries, and specifically relates to a method for preparing a lithium battery. The electrolyte of the lithium battery includes lithium salts, organic solvents, organic free radicals and additives; the organic solvent includes the following mass fraction raw materials: : 20-22 parts of ethyl formate, 10-12 parts of propyl formate, 18-20 parts of methyl acetate, 30-35 parts of propyl acetate and 11-22 parts of ethylene carbonate; the lithium salt is lithium tetrafluoroborate ; The additive comprises the following mass fraction raw materials: 30-40 parts of vinylene carbonate, 20-35 parts of fluoroethylene carbonate and 20-25 parts of cyclohexene; the ring-shaped battery includes a ring-shaped barrel, a sealing cover and a negative electrode column; the negative pole column is fixed in the middle of the annular barrel through insulating rubber; the positive electrode ring is fixed in the annular barrel; the positive electrode ring is fixed in the annular barrel through insulating rubber, and the positive electrode ring is the positive pole; the negative pole is the negative pole of the annular battery; a diaphragm is arranged inside the positive pole ring.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, in particular to a preparation method of lithium batteries. Background technique [0002] Lithium battery refers to a battery containing lithium (including metal lithium, lithium alloy, lithium ion, and lithium polymer) in the electrochemical system. Lithium batteries can be roughly divided into two categories: lithium metal batteries and lithium ion batteries. Lithium metal batteries are generally non-rechargeable and contain lithium in a metallic state. Li-ion batteries do not contain metallic lithium and are rechargeable. [0003] Electrolyte is an integral part of the work of lithium batteries. Lithium battery electrolyte is the carrier of ion transmission in the battery. Generally composed of lithium salt and organic solvent. The electrolyte plays the role of conducting ions between the positive and negative electrodes of the lithium battery, which is the guarantee for the high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0569H01M10/058H01M50/152H01M50/50H01M50/59
CPCH01M10/0569H01M10/058H01M2300/0042H01M50/147H01M50/50H01M50/598Y02E60/10Y02P70/50
Inventor 孙坤磊张如意
Owner 攸攸新能源科技(金华)股份有限公司
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