新一代鋰電池陽極材料
ART/051CP
20081101 - 20101031
9000
李致淳博士
The project deliverables are listed in the following.
(A). One technology transfer:
A developed fabrication process of ASTRI anode material can fabricate at least 5Kg lot size ASTRI anode material. The viability of the process shall be verified through the cost effectively produced sample is capable of producing next generation LIB through;
Pilot battery production line using ASTRI anode material fabrication processes to produce batteries.
(B). Two successful battery prototypes using ASTRI-anode-material either in an existing automatic fabrication line; or in two existing auto-fabrication-line. That is
1). Li ion cell/battery with the anode electrode plate, the anode electrode plate is casting with 5kg lot size ASTRI anode material using auto-fab-line to produce batteries for the verification of anode material function with performance parameters meeting the following specs:
Energy capacity > 450 A•hr/Kg, Irreversible Capacity <10% of the Energy capacity, Cycle life: 400 cycles with less than 20% decay of the first charged energy capacity.
2). Auto-line battery fabrication using 15Kg lot size ASTRI anode material to produce battery for the verification of anode material function with the same performance specified above. In addition, it shall pass a very stringent high C-rate criterion below: Batteries to perform the anode material with weight energy density > 240 Ahr/Kg, Volumetric energy density > 500Whr/L and discharge smoothly with 10 C rate.
(C). Technical report consisting the followings records:
1). Develop scale up ASTRI anode material processes from current 150g (seed project) to a scale of 15 kg that maintaining the material performance as seed project specifications.
2). Develop one surface modifier for cost effectively producing ASTRI cathode material breaking the bottle neck of the current commercial cathode material such as volumetric energy density for the future Li-ion battery applications
3). Develop one ASTRI cathode material. As a result of the feasibility phase of cathode material development, the material shall be with energy capacity >200 Ahr/Kg with 2.1 gram per cc tap density; or (with tap density >2.5 g/cc on the 170 A.hr/Kg energy capacity), > 200 cycles life and with high C charge/discharge capability.
本計畫延續近來完成的NALI種子計畫，種子計畫成功的設計，製造並驗證出符合下一代鋰離子電池所需複合材料。種子計畫中並可製備出具成本效益的之下一世代負極材料。此高效能之負極材料經鋰電池廠商驗證具有高電容量密度(350~450 mAmphr/g),快速充放電與長使用壽命。ASTRI製備之負極材料可相容扵市售電池組裝流程與設備，而輕易加以商用化。 本計畫續研發; 1) 符合成本效益，從150g 放大至15-25 Kg之負極材料量產製程設計。 2) 沿用已發展之商用材料與平台製備技術，研發出具成本效益正極複合材料，是由粒徑均勻且均質之一次奈米粒子複合而成。 3) 驗證所製備的高效能正極材料符合下一世代鋰電池需求。 本計畫致力於ASTRI電極材料的商業化，將從中國/香港地區電池製造廠商的技術移轉與技術授權中得到利益。