Preparation method of multi-element nanometer sulfur anode material for lithium ion battery |
Title: |
Preparation method of multi-element nanometer sulfur anode material for lithium ion battery |
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Application Number: |
200510130712 |
Application Date: |
2005/12/23 |
Announcement Date: |
2006/07/19 |
Pub. Date: |
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Publication Number: |
1803631 |
Announcement Number: |
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Grant Date: |
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Granted Pub. Date: |
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ApplicationType: |
Invention |
State/Country: |
11[China|beijing] |
IPC: |
C01G 31/02, C01B 31/08, C01B 17/02, H01M 4/48, H01M 4/58 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Jiang Changyin, Wan Chunrong, He Xiangming, Ying Jierong, Li Jianjun, Wang Li, Ren Jianguo |
Key Words: |
Preparation method, multi-element, nanometer sulfur, anode material, lithium ion battery |
Abstract: |
The preparation method for nano composite anode material of V2O5-carbon-sulphur and LiVO3-carbon-sulphur comprises: using NH4VO3 or V2O5 as material to prepare V2O5 sol; grinding and mixing the carbon material (acetylene black, acetylene black or active carbon) and elemental sulfur; dispersing the said mixture into V2O5 sol; drying and thermal treating to obtain the nano V2O5-carbon-sulphur composite material; or dispersing the mixture into V2O5 sol contained LiOH to final obtain another LiVO3-carbon-sulphur composite material. Both the products have high electrochemical activity and high density. This invention has simple process and low cost. |
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Priority: |
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