Japan, Feb. 27 -- ASAHI KASEI CORP has got intellectual property rights for 'POSITIVE ELECTRODE PRECURSOR AND POSITIVE ELECTRODE SLURRY.' Other related details are as follows:
Application Number: JP,2022-115810
Category (FI): H01M4/13,H01G11/50,H01M4/139,H01G11/38,H01M4/62@Z,H01M4/583
Stage: PROBLEM TO BE SOLVED: To provide a positive electrode precursor for a non-water system hybrid capacitor with excellent high-output and input and high temperature durability, capable of attaining reduction in both process time and defective rate during manufacturing, and to provide a slurry that enables the manufacturing of the same.SOLUTION: After the addition of a sodium hydroxide solution to a positive electrode active material layer fetched after immersing a positive electrode precursor in water for 24 hours, the whole acid functional group content of the positive electrode active material layer calculated by back titration using hydrochloric acid is 0.15 mmol/g or more and 2.00 mmol/g or less, based on the weight of the positive electrode active material layer, and/or after a slurry of pH 9.0 or more containing a positive electrode active material, another alkali metal chemical compound, a biding agent, a water-soluble polymer, and a solvent is dried in order to remove the solvent, and the sodium hydroxide solution is added to a solid material fetched after immersion in water for 24 hours, the whole acid functional group content of the solid material calculated by back titration using hydrochloric acid is 0.15 mmol/g or more and 2.00 mmol/g or less, based on the weight of the solid material.SELECTED DRAWING: None (Grant)
Filing Date: July 20, 2022
Publication Date: Feb. 1, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
