C/Si Composite Anodes for Advanced Lithium Ion Batteries

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Future Effort• Optimize firing temperature and conditions• Obtain better dispersion of Si particles in sugarprecursors• Evaluate Si particles size between 44 um andNano (performance vs. economics)• Evaluate carbon coatings to deactivate surfaceactivity and extend life• Scale up production to pilot plant (kg) levels• Produce commercial prototype cells for deliveryand testTDAR e s e a r c h
Thanks to NASA JSC for FundingNASA Phase I SBIRContract #: NNX09CE58PCOTR: Judy JeevarajanThank You for Your InterestTDAR e s e a r c h
Page 1 and 2: NASA Battery WorkshopHuntsville, AL
Page 3 and 4: TDA Research, Inc.www.tda.comWheat
Page 5 and 6: History of Commercial SuccessTDA’
Page 7 and 8: Engineered Pore-SizeOptimizes Perfo
Page 9 and 10: Silicon as an Anode• 4200 mAh/g c
Page 11 and 12: Si/C Composites+ xLi+-xLi +SiLi x S
Page 13 and 14: Synopsis of Work EffortThere were t
Page 15 and 16: Started with Control CarbonsFired a
Page 17 and 18: Process Conditions Changed toReduce
Page 19 and 20: Initial Si-nano Controls AlsoShowed
Page 21 and 22: Dispersion of NanoSi Resultedin The
Page 23 and 24: Carbon Stabilized Si CapacityCapaci
Page 25 and 26: Type 2 Carbon Has BetterCapacity Fa
Page 27 and 28: Power is Dependent onLoading Level
Page 29 and 30: Cycle Life Will Be Focus ofFuture E
Page 31: Economic Analysis FavorsLarger Part

C/Si Composite Anodes for Advanced Lithium Ion Batteries

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