1results about How to "Less heat release" patented technology

This invention provides a method for manufacturing a high-safety carbon material, comprising: step (A), mixing carbon material, coating material, glutaraldehyde, and a solution at a weight ratio of 100:2-6:0.2-0.6:100-300 to form a mixed slurry, wherein the carbon material is soft carbon and / or artificial graphite, and the coating material is chitosan and / or sulfurized chitosan; step (B), stirring the mixed slurry evenly and heating it at 70°C-90°C to form a evaporated slurry; step (C), heating the evaporated slurry at 70°C-90°C for more than 24 hours, and then cooling it to room temperature to form a high-safety carbon material. The method of this invention helps to obtain a high-safety carbon material that can mitigate the large amount of heat released during the decomposition of the solid electrolyte interfacial film, prevent the heat generated by the decomposition of the solid electrolyte interfacial film from triggering the entire thermal runaway mechanism, and improve the safety of the negative electrode material in battery use.