Title:
NEGATIVE ELECTRODE ACTIVE MATERIAL PARTICLE, NEGATIVE ELECTRODE, AND, BATTERY
Document Type and Number:
Japanese Patent JP2022161719
Kind Code:
A
Abstract:
To provide a negative electrode active material particle, a negative electrode, and a battery, capable of establishing both of high discharge capacity and excellent capacity retention rate.SOLUTION: A negative electrode active material particle contains 10 to 40 at% of Sn and the balance composed of Cu and impurities in atomic composition percentage, and occludes and/or releases metal ions. The negative electrode active material particle has a tabular shape and includes a plane portion, the plane portion includes a plurality of cracks. A negative electrode comprises: a thin film-like or plate-like active material support member; and a negative electrode mixture layer formed on a surface of the active material support member. The negative electrode mixture layer includes negative electrode active material particles and a binding agent inside which negative electrode active material particles are dispersed. A battery comprises the negative electrode, a positive electrode, a separator, and an electrolyte.SELECTED DRAWING: Figure 1
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Inventors:
NAGATA TATSUO
YAMAMOTO SUKEYOSHI
MATSUMOTO KATSUMASA
YAMAMOTO SUKEYOSHI
MATSUMOTO KATSUMASA
Application Number:
JP2021066750A
Publication Date:
October 21, 2022
Filing Date:
April 09, 2021
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
H01M4/38; C22C9/02; C22C13/00; H01M4/134; H01M4/62; H01M4/64
Attorney, Agent or Firm:
Ascend Patent Business Corporation
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