Lithium battery electrolyte

Abstract

The invention belongs to the technical field of lithium batteries, and particularly relates to a lithium battery electrolyte. The lithium battery electrolyte comprises a lithium salt, an organic solvent, organic free radicals and an additive, wherein the organic solvent is prepared from the following raw materials in parts by mass: 20-22 parts of ethyl formate, 10-12 parts of propyl formate, 18-20parts of methyl acetate, 30-35 parts of propyl acetate and 11-22 parts of ethylene carbonate; the lithium salt is lithium tetrafluoroborate; the additive is prepared from the following raw materialsin parts by mass: 30-40 parts of vinylene carbonate, 20-35 parts of fluoroethylene carbonate and basically 20-25 parts of cyclohexane; the annular battery comprises an annular barrel, a sealing coverand a negative pole; the negative pole is fixedly connected to the middle part in the annular barrel through insulating rubber; a cathode ring is fixedly connected into the annular barrel; the cathodering is fixedly connected into the annular barrel through insulating rubber, and the cathode ring is the cathode of the annular battery; the negative pole is the negative pole of the annular battery;and a diaphragm is arranged in the cathode ring. The battery is low in loss and long in service life, and the electrolyte is convenient and rapid to replace.

Description

technical field [0001] The invention belongs to the technical field of lithium batteries, in particular to a lithium battery electrolyte. 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 voltage and ...

AI Technical Summary

Problems solved by technology

[0011] 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 the electrolyte is replaced, 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 life, a kind of lithium battery electrolyte that the present invention proposes

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