Hard carbon-metal lithium nitride composite cathode materials and method for preparing same |
Title: |
Hard carbon-metal lithium nitride composite cathode materials and method for preparing same |
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Application Number: |
200610011939 |
Application Date: |
2006/05/19 |
Announcement Date: |
2006/12/13 |
Pub. Date: |
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Publication Number: |
1877888 |
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: |
H01M 4/58, H01M 4/04, C01D 15/00, B01F 3/18 |
Applicant(s): |
Tsinghua University |
Inventor(s): |
Sun Hao, He Xiangming, Jiang Zhangyin, Wan Chunrong, Li Jianjun, Wang Li, Ren Jianguo |
Key Words: |
Hard carbon-metal lithium nitride composite, cathode materials, method for preparing same |
Abstract: |
The invention discloses a hard carbon-Li metal nitride compound cathode material and making method in the chemical engineering and new source material technological domain, which is characterized by the following: preparing Li-metal nitride based on Li3 powder and metal powder of removing surface oxide; blending hard carbon and Li-metal nitride protected by inert gas atmosphere completely to produce hard carbon-Li metal nitride composite cathode material. The first surplus discharging capacitance can supplement the first irreversible capacitance of hard carbon. The invention possesses little irreversible capacitance, which improves coulomb efficiency and electric chemical activity. |
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PCT: |
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