Negative electrode for secondary battery
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United States of America Patent
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Jul 20, 2021
Grant Date -
Jul 18, 2019
app pub date -
Oct 13, 2017
filing date -
Oct 14, 2016
priority date (Note) -
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Abstract
The present invention relates to a negative electrode for a secondary battery. The negative electrode for the secondary battery according to an embodiment of the present invention comprises a negative electrode collector and a negative electrode active material integrated with at least a portion of a surface of the negative electrode collector, wherein the negative electrode collector has a plurality of delamination prevention current collection grooves with which the negative electrode active material is integrated, and the negative electrode active material is disposed on an inner surface of each of the delamination prevention current collection grooves so that a space part in which a passivation layer is formed is defined during charging and discharging.
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