Title:
非水電解質二次電池
Document Type and Number:
Japanese Patent JP7437995
Kind Code:
B2
Abstract:
To provide a non-aqueous electrolyte secondary battery using a combination of a positive electrode active material having a layered rock salt type structure and a concentrated electrolyte solution, which has further improved cycle durability.SOLUTION: A positive electrode for a non-aqueous electrolyte secondary battery including a positive electrode active material layer 13 including a positive electrode active material having a layered rock salt type structure and an electrolytic solution, and the electrolytic solution contains lithium ions having a concentration of 50% or more of the saturated lithium ion concentration at 25°C, and the value of the roughness factor defined as the value of the ratio of the BET specific surface area to the geometric specific surface area calculated from the average particle size of the positive electrode active material is set to 3 or less.SELECTED DRAWING: Figure 1
Inventors:
Kazuki Aihara
Shunsuke Kawaguchi
Naoki Ueda
Shunsuke Kawaguchi
Naoki Ueda
Application Number:
JP2020061308A
Publication Date:
February 26, 2024
Filing Date:
March 30, 2020
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
H01M4/131; H01M4/505; H01M4/525; H01M10/052; H01M10/0566
Domestic Patent References:
| JP2019175592A | ||||
| JP10125325A | ||||
| JP2003068299A | ||||
| JP2005123180A |
Foreign References:
| WO2019167558A1 | ||||
| WO2019026630A1 | ||||
| WO2019044205A1 |
Attorney, Agent or Firm:
IBC Ichibancho Patent Attorney Corporation
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