News Center
NEWSLithium metal batteries:
The basic principle of lithium batteries
Lithium metal batteries are generally batteries that use manganese dioxide as the positive electrode material, lithium metal or its alloy metal as the negative electrode material, and a non-aqueous electrolyte solution.
Discharge reaction: Li+MnO2=LiMnO2
Lithium ion batteries:
Lithium ion batteries are generally batteries that use lithium alloy metal oxide as the battery cathode material, graphite as the battery cathode material and a non-aqueous electrolyte solution.
The reaction on the charging cathode is: LiCoO2 = Li(1-x)CoO2 + xLi++xe-(electrons)
The reaction occurring on the negative side of the charge is: 6C+xLi++xe- = LixC6
Total reaction in the charge cell: LiCoO2 + 6C = Li(1-x)CoO2 + LixC6
Positive electrodes
Anode materials: There are many anode materials available, and the following table shows the common anode active materials currently on the market.
Nickel-cobalt-aluminium ternary
Anode materials | Chemical composition | Nominal voltage | Structure | Energy density | Cycle life | Costs | Security |
Lithium cobaltate(LCO) | LiCoO2 | 3.7 V | Laminar | Medium | Low | High | Low |
Lithium manganate(LMO) | Li2Mn2O4 | 3.6V | Spinel | Low | Medium | Low | Medium |
Lithium nickelate(LNO) | LiNiO2 | 3.6V | Laminar | High | Low | High | Low |
Lithium iron phosphate(LFP) | LiFePO4 | 3.2 V | Peridot | Medium | High | Low | High |
LiNixCoyAl(1-x-y)O2 | 3.6V | Laminar | High | Medium | Medium | Low | |
Nickel-cobalt-manganese ternary(NCM) | LiNixCoyMn(1-x-y)O2 | 3.6V | Laminar | High | High | Medium | Low |
Anodic reaction: lithium ion embedding during discharge, lithium ion de-embedding during charge. On charging: LiFePO4 → Li1-xFePO4 + xLi+ + xe- On discharging: Li1-xFePO4 + xLi+ + xe- → LiFePO4.
Negative electrode
Negative electrode materials: graphite is mostly used. In addition, lithium metal, lithium alloy, silicon carbon anode, oxide anode material, etc. can also be used for the negative electrode.
Negative electrode reaction: lithium ions are de-embedded when discharging and embedded when charging.
When charging: xLi+ + xe- + 6C → LixC6
When discharging: LixC6 → xLi+ + xe- + 6C
Telephone：0755-8466 8869 Human Administration Center
135 1020 8691 Business Enquiries
Fax：0755-8466 8869
Company Email：hr@jcnico.com
Address：2nd Floor, No. 1-1 Honghualing Road, Pingxilingbei,Pingdi Street, Longgang District, Shenzhen
WeChat Public
