Composite ceramic particles as well as preparation method and application thereof

A technology of composite ceramics and ceramic particles, used in coatings, electrical components, electrochemical generators, etc., can solve the problems of inability to provide mechanical strength, melting collapse, powdering of external ceramic coatings, etc., to improve heat resistance. , Avoid excessive shrinkage, improve the effect of thermal stability
CN113278310AActive Publication Date: 2021-08-20HUIZHOU LIWINON NEW ENERGY TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HUIZHOU LIWINON NEW ENERGY TECH CO LTD
Publication Date
2021-08-20

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Abstract

The invention provides composite ceramic particles as well as a preparation method and application thereof. The composite ceramic particles comprise phase change particles, ceramic particles and a material easy to form a film after being heated, wherein the phase change particles are used as inner cores of the composite ceramic particles, the ceramic particles are used as middle layers of the composite ceramic particles, the ceramic particles are of mesoporous hollow sphere structures, the phase change particles fill in the ceramic particles, the material easy to form a film after being heated is used as shells of the composite ceramic particles and coats the surfaces of the ceramic particles; the melting point of the material easy to form the film after being heated is 80-150 DEG C. Compared with a conventional ceramic coating prepared from ceramic particles, a ceramic coating prepared from the ceramic particles with the three-layer core-shell structure has high heat resistance. Thus, with the structural design of the composite ceramic particles adopted, the problem that the existing ceramic coating is insufficient can be effectively solved.
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Description

technical field

[0001] The invention relates to the field of lithium batteries, in particular to a composite ceramic particle and a preparation method and application thereof. Background technique

[0002] Due to its high specific energy, no memory effect and excellent cycle life, lithium-ion batteries are widely used in various electronic devices such as digital cameras, mobile phones, tablet computers, and drones, and are constantly being used in the field of new energy vehicles. Development is an important driving force for the development of electrochemical energy storage devices.

[0003] In the structure of lithium ion battery, it includes positive electrode, negative electrode, electrolyte and diaphragm. The separator is located between the positive electrode and the negative electrode, and its main function is to separate the positive electrode and the negative electrode to prevent the migration of active materials; at the same time, it also has the function of prov...

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
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