Method for preparing low temperature lithium ion battery negative electrode sheet

The invention provides a method for preparing a low temperature energy type lithium ion power battery negative electrode sheet. Graphite coated with amorphous carbon is adopted and mixed with a negative electrode conductive agent/binder. The water system slurry mixing process is adopted and the negative electrode sheet adopts secondary roller pressing. After primary roller pressing, a layer of CMCgrafted acrylic coating is continuously coated on the surface of the electrode sheet, surface treatment is performed with low-temperature plasma and secondary roller pressing is performed. The surface of the electrode sheet is continuously coated with a layer of CMC graft acrylic coating and surface treatment is performed with the low-temperature plasma, the roughness of the electrode piece surface is microscopically increased, the surface activity is provided, the liquid retention performance of the negative electrode sheet at low temperature is increased and contact resistance between the electrode sheet and the su