A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Process for manufacturing graphite powder for lithium secondary battery negative electrode material
A method for easily producing a graphite powder for use as a lithium secondary battery negative electrode material with small specific surface area while reducing energy consumption, and achieving high graphitization efficiency, includes melt-mixing a coke powder and a carbon precursor binder so that an amount of fixed carbon included in the carbon precursor binder is 5 to 15 parts by mass based on 100 parts by mass of the coke powder, to prepare a mixture, and pressing the mixture to prepare a compact, the coke powder being obtained by heating a green coke powder at 600 to 1450° C. in a non-oxidizing atmosphere, the green coke powder having a cumulative particle size at 50% in a volumetric cumulative particle size distribution of 5 to 50 μm; heating the compact in a non-oxidizing atmosphere to effect carbonization and graphitization to obtain a graphitized compact; and grinding the graphitized compact.
Process for manufacturing graphite powder for lithium secondary battery negative electrode material
A method for easily producing a graphite powder for use as a lithium secondary battery negative electrode material with small specific surface area while reducing energy consumption, and achieving high graphitization efficiency, includes melt-mixing a coke powder and a carbon precursor binder so that an amount of fixed carbon included in the carbon precursor binder is 5 to 15 parts by mass based on 100 parts by mass of the coke powder, to prepare a mixture, and pressing the mixture to prepare a compact, the coke powder being obtained by heating a green coke powder at 600 to 1450° C. in a non-oxidizing atmosphere, the green coke powder having a cumulative particle size at 50% in a volumetric cumulative particle size distribution of 5 to 50 μm; heating the compact in a non-oxidizing atmosphere to effect carbonization and graphitization to obtain a graphitized compact; and grinding the graphitized compact.
Process for manufacturing graphite powder for lithium secondary battery negative electrode material
YAMAMOTO KAZUHIRO (author) / KOMORIYA MAYURI (author) / YAMAKI MOTOHIRO (author) / FUKUGAWA TOMOHITO (author) / KUROYANAGI AKIHIRO (author)
2019-06-04
Patent
Electronic Resource
English
PROCESS FOR MANUFACTURING GRAPHITE POWDER FOR LITHIUM SECONDARY BATTERY NEGATIVE ELECTRODE MATERIAL
| European Patent Office | 2024
PROCESS FOR PRODUCING NEGATIVE ELECTRODE MATERIAL FOR LITHIUM ION SECONDARY BATTERY
| European Patent Office | 2017
| European Patent Office | 2022
Novel graphitization method of lithium ion battery graphite negative electrode material
| European Patent Office | 2022