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HIGH POWER, EXTENDED TEMPERATURE RANGE-CAPABLE, HIGHLY ABUSE OVERCHARGE AND DISCHARGE TOLERANT RECHARGEABLE BATTERY CELL AND PACK
HIGH POWER, EXTENDED TEMPERATURE RANGE-CAPABLE, HIGHLY ABUSE OVERCHARGE AND DISCHARGE TOLERANT RECHARGEABLE BATTERY CELL AND PACK
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机译:高功率,可扩展的温度范围,高度滥用和过度充电的可充电电池单元和电池组
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摘要
Provided are electrochemical secondary cells that exhibit excellent abuse tolerance, deep discharge and overcharge conditions including at extreme temperatures and remain robust and possess excellent performance. Cells as provided herein include: a cathode a polycrystalline cathode electrochemically active material including the formula Li1+xMO2+y, wherein −0.9≤x≤0.3, −0.3≤y≤0.3, and wherein M includes Ni at 80 atomic percent or higher relative to total M, the cathode electrochemically active material comprising a non-uniform distribution of Co; an anode including an anode electrochemically active material of the formula Li4+aTi5O12+b wherein −0.3≤a≤3.3, −0.3≤b≤0.3; and wherein the anode and the cathode each independently include a current collector substrate comprising aluminium.
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机译:提供了电化学二次电池,其表现出优异的耐滥用性,深放电和过充电条件(包括在极端温度下),并且保持坚固并且具有优异的性能。本文提供的电池包括:阴极,包括式Li 1 + x Sub> MO 2 + y Sub>的多晶阴极电化学活性材料,其中-0.9≤x≤0.3,-0.3 ≤y≤0.3,并且其中M包括相对于总M为80原子百分比或更高的Ni,所述阴极电化学活性材料包含Co的不均匀分布;包括式Li 4 + a Sub> Ti 5 Sub> O 12 + b Sub>的阳极电化学活性材料的阳极,其中-0.3≤a≤3.3, -0.3≤b≤0.3;并且其中阳极和阴极各自独立地包括包含铝的集流体基板。
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