期刊
ACS APPLIED MATERIALS & INTERFACES
卷 5, 期 21, 页码 11207-11211出版社
AMER CHEMICAL SOC
DOI: 10.1021/am403438m
关键词
Li/CFx primary battery; mechanical milling; high power density; high energy density
资金
- State of Baden-Wurttemberg, Project House 'e-drive' [PHed.L.0208.01]
The effect of high energy ball milling on the electrochemical performance of graphite fluoride (CFx) was investigated. A significant improvement was observed in both energy density and power density. The volumetric energy density was increased up to a factor of 3 with ball milled materials compared with pristine materials. The gravimetric energy density was increased up to a factor of 2, depending on the discharge rates. At 6C the ball milled material still delivered 40% of its nominal capacity, whereas the pristine material did not exhibit any capacity any more. We achieved the power density of 9860 W/kg with a gravimetric energy density of 800 Wh/kg for the optimized material.
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