METHOD FOR PRODUCING CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, CARBON MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM ION SECONDARY BATTERIES, COMPOSITION, CARBON COMPOSITE MATERIAL FOR NEGATIVE ELECTRODES OF LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE MIXTURE FOR LITHIUM ION SECONDARY BATTERIES, NEGATIVE ELECTRODE FOR LITHIUM ION SECONDARY BATTERIES, AND LITHIUM ION SECONDARY BATTERY

摘要

Provided are a carbon material for lithium ion secondary batteries, a negative electrode compound for lithium ion secondary batteries, a negative electrode for lithium ion secondary batteries, and a lithium ion secondary battery which can provide lithium ion secondary batteries having a further improved charge and discharge capacity density and further improved charge and discharge cycle characteristics. A method for manufacturing the lithium ion secondary batteries includes a mixing step of mixing a phenol resin and a resin composition containing silica particles so as to obtain a mixture, a spraying step of spraying the mixture obtained in the mixing step so as to form liquid droplets, a first thermal treatment step of carrying out a first thermal treatment on the liquid droplets obtained in the spraying step so as to generate a carbon precursor, and a second thermal treatment step of carrying out a second thermal treatment, which is carried out at a higher temperature than the first thermal treatment, on the carbon precursor obtained in the first thermal treatment step so as to generate a carbon material containing carbon and silicon oxide represented by SiOx (0X2).