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US 2022/0190341 A1Published application
Binder composition for secondary battery positive electrode, conductive material paste composition for secondary battery positive electrode, slurry composition for secondary battery positive electrode, positive electrode for secondary battery and method of producing same, and secondary battery
AssigneeZeon Corporation
InventorsShinsuke SUGAWARA, Naoki TAKAHASHI
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Abstract
A binder composition for a secondary battery positive electrode contains a specific polymer. The specific polymer includes a nitrile group-containing monomer unit and a linear alkylene structural unit having a carbon number of 4 or more. The pH of an extract of the specific polymer that is obtained by a specific method is 5.5 or higher.
Claims11
A binder composition for a secondary battery positive electrode comprising a polymer, wherein
- the polymer includes a nitrile group-containing monomer unit and a linear alkylene structural unit having a carbon number of 4 or more, and an extract of the polymer has a pH of 5.5 or higher,
- the extract being an extract that is obtained by diluting an 8 mass % N-methyl-2-pyrrolidone solution of the polymer by a factor of 10 with deionized water.
Dependencies are inferred from the claim text.