Chemical Reaction Principle of Lithium Batteries

Lithium-ion battery cathode materials: 

There are many optional cathode materials. At present, most of the mainstream products are lithium iron phosphate.            Lithium iron phosphate system

  Positive electrode reaction: lithium ion intercalation during discharge and lithium ion de-intercalation during charging. When charging: LiFePO4 Li1-xFePO4 + xLi + + XE - when discharging: Li1-xFePO4 + xLi + + xe-LiFePO4  

 Negative pole   

 Anode material: Graphite is mostly used. New research has found that titanate may be a better material. Negative electrode reaction: lithium ion is detached during discharge, and lithium ion is inserted during charging. 

When charging: xLi++xe-+6C_LixC6 discharging: LixC6_xLi++xe-+6C            

Lithium cobalt system            

The reaction at the positive pole is           

 LiCoO 2 = Charging = Li1-xCoO 2 + XLi + + Xe-            Li1-xCoO 2+XLi++Xe-= Discharge = LiCoO 2            

The reaction at the negative pole is            

6C+XLi++Xe-= Charging = LixC6            LixC6 = Discharge = 6C + XLi + + Xe-