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

Electrolyte multifunctional additive for lithium ion battery electrode material and preparation method thereof

A lithium-ion battery and electrode material technology, applied in the field of electrolyte multifunctional additives for lithium-ion battery electrode materials and its preparation, can solve the problems of battery swelling, battery performance degradation, consumption, etc., and achieve extended service life and long cycle life , Good magnification performance

Active Publication Date: 2020-05-22
广州鸿森材料有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formation of SEI is an irreversible reaction that consumes a part of the lithium ions that can be cycled in the battery, resulting in a decrease in the reversible capacity of the battery, resulting in a rapid deterioration of the battery cycle performance, severe battery swelling, and a decline in the performance of the entire battery.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Electrolyte multifunctional additives for lithium-ion battery electrode materials in this embodiment are made of the following raw materials in parts by weight: 3 parts of 1-butynyl phosphonic acid diethyl ester, 1 part of ethoxy pentafluorocyclotriphosphazene, ethylene carbonate 1 part of vinylidene, 3 parts of hexamethyldisilazane, 3 parts of 1,3-propene sultone;

[0021] Wherein, based on the total weight of the electrolyte, the content of the multifunctional additive is 0.2%.

[0022] The preparation method of the electrolyte multifunctional additive for the lithium ion battery electrode material of the present embodiment comprises the following steps:

[0023] S1, weigh each raw material, set aside;

[0024] S2. Under an inert atmosphere, add 1-butynyl phosphonic acid diethyl ester, ethoxy pentafluorocyclotriphosphazene, ethylene vinylene carbonate, and hexamethyldisilamine to the reaction tank in sequence while stirring alkane, 1,3-propene sultone, and stir even...

Embodiment 2

[0026] Electrolyte multifunctional additives for lithium-ion battery electrode materials in this embodiment are made of the following raw materials in parts by weight: 10 parts of diethyl 1-butynyl phosphonate, 7 parts of ethoxy pentafluorocyclotriphosphazene, ethylene carbonate 5 parts of vinylidene ester, 10 parts of hexamethyldisilazane, 10 parts of 1,3-propene sultone;

[0027] Wherein, based on the total weight of the electrolyte, the content of the multifunctional additive is 12%;

[0028] The preparation method of the electrolyte multifunctional additive for the lithium ion battery electrode material of the present embodiment comprises the following steps:

[0029] S1, weigh each raw material, set aside;

[0030] S2. Under an inert atmosphere, add 1-butynyl phosphonic acid diethyl ester, ethoxy pentafluorocyclotriphosphazene, ethylene vinylene carbonate, and hexamethyldisilamine to the reaction tank in sequence while stirring alkane, 1,3-propene sultone, and stir even...

Embodiment 3

[0032] Electrolyte multifunctional additives for lithium-ion battery electrode materials in this embodiment are made of the following raw materials in parts by weight: 6.5 parts of 1-butynyl phosphonic acid diethyl ester, 4 parts of ethoxy pentafluorocyclotriphosphazene, ethylene carbonate 3 parts of vinylidene ester, 6.5 parts of hexamethyldisilazane, 7 parts of 1,3-propene sultone;

[0033] Wherein, based on the total weight of the electrolyte, the content of the multifunctional additive is 2%;

[0034] The preparation method of the electrolyte multifunctional additive for the lithium ion battery electrode material of the present embodiment comprises the following steps:

[0035] S1, weigh each raw material, set aside;

[0036] S2. Under an inert atmosphere, add 1-butynyl phosphonic acid diethyl ester, ethoxy pentafluorocyclotriphosphazene, ethylene vinylene carbonate, and hexamethyldisilamine to the reaction tank in sequence while stirring alkane, 1,3-propene sultone, and...

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 provides an electrolyte multifunctional additive for lithium ion battery electrode materials and a preparation method thereof, and relates to the technical field of lithium ion battery multifunctional additives. Electrolyte multifunctional additives for lithium ion battery electrode materials of the present invention include 1-butynyl phosphonic acid diethyl ester, ethoxy pentafluorocyclotriphosphazene, ethylene vinylene carbonate, hexamethyldisilazane, 1 , 3-propene sultone. Electrolyte multifunctional additive for lithium ion battery electrode material of the present invention can improve the performance of lithium ion battery, the lithium ion battery manufactured by electrolyte multifunctional additive for lithium ion battery electrode material of the present invention is helpful to the development of long-life energy storage and power lithium ion battery It has significant application value and prospect.

Description

technical field [0001] The invention relates to the technical field of lithium ion battery additives, in particular to a multifunctional electrolyte additive for lithium ion battery electrode materials and a preparation method thereof. Background technique [0002] Lithium-ion batteries are widely used in portable electronic product markets such as mobile phones, digital cameras, and personal computers due to their high energy density, high voltage, and long life. "Low-carbon economy" is of great significance. [0003] Electrolyte multifunctional additives for lithium-ion battery electrode materials are mainly composed of lithium salts and organic carbonates, known as the blood of batteries. The electrolyte is a bridge connecting the positive and negative electrodes, and plays the role of transporting ions and conducting current inside the battery. Therefore, the properties of the electrolyte have a significant impact on the performance of the battery, and the optimization...

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): H01M10/0567
CPCH01M10/0567Y02E60/10
Inventor 刘振添孙斌王英洪魁明
Owner 广州鸿森材料有限公司