ELECTROCHEMICAL CELL, METHOD OF PRODUCING ELECTROCHEMICAL CELL, BATTERY PACK, AND CAR
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United States of America Patent
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Mar 10, 2014
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Mar 22, 2012
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Abstract
According to one embodiment, an electrochemical cell includes a positive electrode, a negative electrode, a sulfide-based solid electrolyte layer and an oxide-based solid electrolyte layer. The positive electrode includes positive electrode active material particles which absorb and release lithium ions at a potential of 3 V (vs. Li/Li+) or more. The sulfide-based solid electrolyte layer is bonded to the negative electrode. The oxide-based solid electrolyte layer has a thickness of 0.5 μm or less and is provided on surfaces of the positive electrode active material particles.
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