Conductive ceramic composite diaphragm and solid-state battery

A technology of conductive ceramics and composite diaphragms, applied in the field of conductive ceramic composite diaphragms and solid-state batteries, can solve the problems of poor mechanical properties of composite electrolytes, high cost of inorganic solid electrolytes, and large interface resistance, so as to facilitate the diffusion of lithium ions and improve interface stability Sex and electrochemical working window, increasing the effect of thermal stability
CN108878751AActive Publication Date: 2018-11-23NINGDE ZHUOGAO NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NINGDE ZHUOGAO NEW MATERIAL TECH CO LTD
Publication Date
2018-11-23

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Abstract

The invention relates to a conductive ceramic composite diaphragm and a solid-state battery. The conductive ceramic composite diaphragm comprises a porous base membrane and a conductive ceramic composite coating layer which is coated on one side or two sides of the porous base membrane, wherein the conductive ceramic composite coating layer comprises the following components based on the total weight thereof: 5-80wt% of an organic polymer, 10-85wt% of a nano inorganic solid electrolyte, 1-20wt% of high-molecular grafted modified ceramic, 1-12wt% of a binder and 0.1-0.5wt% of a wetting agent.
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Description

technical field

[0001] The disclosure relates to the field of battery diaphragms, in particular to a conductive ceramic composite diaphragm and a solid-state battery comprising the diaphragm. Background technique

[0002] In recent years, in the field of new energy vehicles, the demand for lithium-ion batteries has increased year by year. At present, lithium-ion batteries generally use liquid organic electrolytes for ion conduction, but organic electrolytes are prone to accidents such as leakage, electrode corrosion, combustion and explosion, and there are major safety hazards.

[0003] Solid-state electrolyte batteries have gradually entered the public's field of vision due to their characteristics of organic liquid batteries and high safety. Solid electrolytes include organic polymer electrolytes, inorganic electrolytes and composite electrolytes. Polymer electrolytes have low conductivity at room temperature, and the cost of inorganic solid electrolytes is high, while c...

Claims

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