NONAQUEOUS ELECTROLYTE BATTERY AND BATTERY PACK
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United States of America Patent
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Issued Date -
Jan 7, 2021
app pub date -
Sep 18, 2020
filing date -
Apr 4, 2018
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Abstract
According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. The negative electrode includes a negative electrode material layer including a titanium-containing oxide. A logarithmic differential pore volume distribution curve of the separator obtained by a mercury intrusion method includes a first peak at which a pore diameter is in the range from 0.02 μm to 0.15 μm and second peak at which the pore diameter is in the range from 1.5 μm to 30 μm. A ratio P2I/P1I of a second peak intensity to a first peak intensity is more than 1.00 and not more than 3.00. The pore specific surface area of the separator is 70 m2/g or more.
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