BATTERY UNIT AND SECONDARY BATTERY
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United States of America Patent
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Mar 25, 2021
app pub date -
Jun 30, 2020
filing date -
Sep 19, 2019
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Abstract
According to an embodiment, a battery unit is provided. The battery unit includes an electrode structure and a substrate. The electrode structure includes a first electrode and an organic fiber film. The first electrode includes an active material-containing layer. The organic fiber film is provided on the active material-containing layer. The substrate is in contact with the organic fiber film. A coefficient of kinetic friction between the electrode structure and the substrate is 0.8 or less. Elongation amount S of the organic fiber film and thickness T of the first electrode satisfies the following equation (1):
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