Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of battery fluid and lithium ion battery

An electrolyte and electrolyte technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as large safety hazards, short service life, and safety hazards, and achieve the advantages of inhibiting decomposition, improving storage performance, and reducing cathode oxidation. Effect

Active Publication Date: 2019-04-02
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, one of the bottlenecks in the development of electric vehicles is the short service life and hidden safety hazards, especially for high-voltage nickel-manganese, ternary and other materials, the electrolyte oxidation and decomposition are more serious, resulting in greater safety hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of battery fluid and lithium ion battery
  • A kind of battery fluid and lithium ion battery
  • A kind of battery fluid and lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～26

[0096] Preparation of Examples 1-26 lithium-ion batteries (hereinafter referred to as batteries) 1-26

[0097] Batteries 1-26 were prepared according to the following method:

[0098] (1) Negative plate preparation

[0099] Negative electrode active material graphite, conductive agent acetylene black, binder styrene-butadiene rubber, thickener sodium carboxymethylcellulose are graphite in weight ratio: acetylene black: styrene-butadiene rubber: sodium carboxymethylcellulose=95:2 : 2:1 for mixing, after adding deionized water, fully stir and mix to form a uniform negative electrode slurry; apply this slurry on the copper foil of the negative electrode current collector, then dry and cold press to obtain the negative electrode sheet.

[0100] (2) Preparation of positive electrode sheet

[0101] The positive electrode active material lithium nickel manganese cobalt ternary material, conductive agent acetylene black, and binder polyvinylidene fluoride are lithium nickel manganes...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an electrolyte. The electrolyte comprises an organic solvent, an electrolyte and an additive, wherein the additive comprises a coordination compound containing sulfone-boron trifluoride and a cyclic ester compound containing sulfur-oxygen double bonds; when the coordination compound containing sulfone-boron trifluoride and the cyclic ester compound containing sulfur-oxygen double bonds are simultaneously contained in the electrolyte, the cyclic ester compound containing sulfur-oxygen double bonds can form a favorable SEI film at a negative electrode, the electrolyte decomposition on the surface of the negative electrode is inhibited, the coordination compound containing sulfone-boron trifluoride can mutually acts with a positive electrode material, the electrolyte oxidation at a positive electrode is effectively reduced, the cycle and storage performance of a lithium ion battery in a normal temperature can be improved; and due to the synergistic effect of the coordination compound containing sulfone-boron trifluoride and the cyclic ester compound containing sulfur-oxygen double bonds, the cycle performance of the battery in a high temperature and the storage performance of the battery in the high temperature also can be greatly improved.

Description

technical field [0001] The present application relates to the technical field of lithium batteries, in particular to an electrolyte and a lithium ion battery. Background technique [0002] Compared with traditional secondary batteries, lithium-ion batteries have the advantages of high working voltage, small size, light weight, high energy density, no memory effect, no pollution, small self-discharge, and long cycle life. In 1990, Sony Corporation of Japan produced the first lithium-ion battery, setting off a wave of commercialization of lithium-ion batteries. In recent years, in addition to being used in consumer electronics, lithium-ion secondary batteries are also widely used in electric vehicles, and are regarded as an important means to solve vehicle exhaust pollution and reduce fossil energy consumption. At present, one of the bottlenecks in the development of electric vehicles is the short service life and potential safety hazards, especially for high-voltage nickel-m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/0567H01M10/0525
CPCH01M10/0525H01M10/0567H01M2300/0025Y02E60/10
Inventor 王珂谢岚史松君王耀辉
Owner JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED