High-density LiNixCoyMzO2 anode material for lithium ion cell and its preparing process
Title:
High-density LiNixCoyMzO2 anode material for lithium ion cell and its preparing process
Application Number:
200510011752
Application Date:
2005/05/20
Announcement Date:
2005/10/26
Pub. Date:
Publication Number:
1688049
Announcement Number:
Grant Date:
Granted Pub. Date:
ApplicationType:
Invention
State/Country:
11[China|beijing]
IPC:
H01M 4/48, H01M 4/58, H01M 4/04, C01D 15/00, C01G 1/02
Applicant(s):
Tsinghua Univ.
Inventor(s):
Hu Xiaoqing, Zneg Zhaoqiang
Key Words:
lithium ion cell, high-density, LiNixCoyMzO2, anode material, preparing process
Abstract:
This invention relates to a high-density NiCo acid Li positive material and its preparation method used in Li ionic battery, which takes LiOH, Ni(OH) and Co3O4 as the raw materials. The preparation method includes: mixing the material in terms of mol ratio of LiOH: 1-5 to be ground, dried and screened, and annealed under 750-850deg.C oxygen atmosphere, heat-insulated to get the high density Ni Co acid Li powder, which is uniform, the mean size is 10mum, the mean grain size scale is 1mum, the capacity height is 170-180mAh/g, the tap density height is 2.4-2.8g/cucm, the attenuation for 500times is 2-5%.
Claim:
Priority:
PCT:
LegalStatus:

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2008-4-17
  Selected patents owned by Tsinghua University filed in 2005 are loaded.
2008-3-31
  Selected patents owned by Tsinghua University filed in 2006 and 2007 are load.







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