一种硅掺杂石墨烯制备的赝电容性水系钙离子电池负极及其在水系钙离子电池中的应用
The pseudocapacitive aqueous calcium-ion battery anode was prepared by using silicon-doped graphene, which solved the problem of low energy density of graphene materials and achieved high energy and high power density calcium-ion storage, making it suitable for aqueous calcium-ion battery anodes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIAN TECH UNIV
- Filing Date
- 2023-03-10
- Publication Date
- 2026-07-17
AI Technical Summary
When existing graphene materials are used as anode materials for calcium-ion batteries, their energy density is low and cannot meet the needs of practical applications.
A pseudocapacitive aqueous calcium-ion battery anode was prepared using silicon-doped graphene. Silicon-doped graphene was prepared by high-temperature pyrolysis of ethyl silicate and monolayer graphene under nitrogen protection. The graphene was then mixed with acetylene black and polyvinylidene fluoride and coated onto carbon paper to form the anode. Combined with a unique sintering process, a highly efficient pseudocapacitive calcium-ion storage material was formed.
It achieves high energy density and high power density calcium ion storage, has good Ca2+ adsorption and desorption properties, is suitable for aqueous calcium ion battery anodes, and has broad application prospects.
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Figure CN116230840B_ABST