How do lithium ion battery cells work?


1. Cathode
2. Anode
3. High-molecular ion conductor with ceramic SEPARION® membrane
4. Lithium ions during charging

The Li-Tec CERIO® battery cells are made of three components:

  • a positive electrode made of a lithium metal oxide coating on aluminum collector (cathode),
  • a negative electrode made of a graphite coating on copper collector (anode),
  • a high-molecular ion conductor with the ceramic SEPARION® membrane that reliably separates cathode and anode and prevents the internal short circuit.

Due to its porous structure SEPARION® allows the lithium ions to pass. Upon charging they move from the cathode through the ion conductor with the separator membrane to the anode. Upon discharging the lithium ions move back to the cathode providing electric energy.