US Patent Application 18320202. METHOD OF PRODUCING NEGATIVE ELECTRODE COMPOSITE MATERIAL SLURRY FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY simplified abstract
METHOD OF PRODUCING NEGATIVE ELECTRODE COMPOSITE MATERIAL SLURRY FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Organization Name
PRIME PLANET ENERGY & SOLUTIONS, INC.
Inventor(s)
Kouhei Tsuzuki of Kobe-shi (JP)
Naoto Onodera of Kobe-shi (JP)
Yuki Morikawa of Kobe-shi (JP)
Yurika Kojima of Kobe-shi (JP)
METHOD OF PRODUCING NEGATIVE ELECTRODE COMPOSITE MATERIAL SLURRY FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract
This abstract first appeared for US patent application 18320202 titled 'METHOD OF PRODUCING NEGATIVE ELECTRODE COMPOSITE MATERIAL SLURRY FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY
Simplified Explanation
The patent application describes a method of producing a slurry for a negative electrode composite material used in non-aqueous electrolyte secondary batteries.
- The method involves two steps: obtaining a mixed-kneaded body and using it to obtain the slurry.
- In the first step, a mixture of negative electrode active materials, carboxymethylcellulose, polyacrylic acid, and water is mixed and kneaded.
- The second step involves mixing and kneading the first mixed-kneaded body with carboxymethylcellulose and water.
- The solid content of the first mixed-kneaded body is between (a-3)% and a%, and the solid content of the slurry is between (a-15)% and (a-10)%.
- The value "a" represents the solid content defined in the patent application.
Original Abstract Submitted
A method of producing a negative electrode composite material slurry for a non-aqueous electrolyte secondary battery comprises a first step to obtain a first mixed-kneaded body, and a second step to use the first mixed-kneaded body to obtain the negative electrode composite material slurry. The first step includes a step to mix and knead a negative electrode active material including a carbon-based active material and a Si-based active material, carboxymethylcellulose, polyacrylic acid, and water. The second step includes a step (x1) to mix and knead the first mixed-kneaded body, carboxymethylcellulose, and water. A solid content of the first mixed-kneaded body is from (a-3)% to a%, and a solid content of the negative electrode composite material slurry is from (a-15)% to (a-10)%. “a” refers to the solid content [%] defined in the specification.
