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Abstract

The heat character of Lithium-ion battery materials and explosion mechanism of Lithium-ion cells under the overcharge,short-circuit and other abuse behavior are tested by C_(80) calorimeter,_()DSC and charge-discharge instrument.SEI reactions,Li_xC_(6)/electrolyte and Li_xC_(6)/PVDF reactions take place at the anodes.Electrolyte and solvent reactions happen after 178℃ and Li_(1-x)Co_(1/3)Ni_(1/3)Mn_(1/3)O_(2) decomposes after 230℃.The batteries explode at 150℃ oven test or 1.5C,5.5 V overcharge and do not explode at short-circuit.

Keywords

Lithium-ion battery, Explosion mechanism, Thermal stability, Overcharge, Short-circuit

Publication Date

2006-08-28

Online Available Date

2006-08-28

Revised Date

2006-08-28

Received Date

2006-08-28

References

[1]Tob ish im a S I,Yam ak i J I.A consideration of lith iumcell safety[J].J.Power Sources,1999,(81~82):882~886.
[2]Spotn itz R,Franklin J.Abuse behavior of h igh-power,lith ium-ion cells[J].J.Power Sources,2003,113:81~100.
[3]B iensan P,S imon B,Peres J P,et al.On safety of lith-ium-ion cells[J].J.Power Sources,1999,(81~82):906~912
[4]Kawamura T,K imura A,Egash ira M,et al.Therm alstab ility of alkyl carbonate m ixed-solvent electrolytes forlith ium ion cells[J].J.Power Sources,2002,104:260~264.
[5]M acNe il D D,Lu Z H,Chen Z H,et al.A comparisonof the electrode/electrolyte reaction at elevated tempera-tures for various L i-ion battery cathodes[J].J.PowerSources,2002,108:8~14.
[6]R ichard M N,Dahn J R.Accelerating rate calorim etrystudy on therm al stab ility of lith ium intercalated graph itein electrolyte.I.experim ental[J].J.E lectrochem.Soc.,1999,146(6):2068~2077.
[7]Baba Y,Okada S,Yam ak i J I.Therm al stab ility ofL ixCoO2cathode for lith ium ion battery[J].So1 id StateIon ics,2002,148:3 ll~316.

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