Lithium Ion Battery Materials – Home

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Welcome to the Lithium ion battery materials home page

This section contains the structures and lithium diffusion animations of various materials used in lithium ion batteries (LIB). LIBs have drawn a lot of attention recently due to important applications in consumer electronics and electric vehicles. LIBs represent a significant step to the goal of building a zero-emission society.

Select Cathode (Positive Electrode) : Electrolyte Anode (Negative Electrode) to view the materials.

CHARGING PROCESS

When the battery is being charged, Li+ ions move from the cathode (positive electrode) via the electrolyte to the anode (negative electrode).

Electrons simultaneously move to the anode via the external electric circuit.

Charging

DISCHARGING PROCESS

When the battery is being discharged, Li+ ions move from the anode via the electrolyte to the cathode.

Electrons simultaneously move to the cathode via the external electric circuit.

Charging

When the battery is working (or discharging), the cathode is being reduced and the anode would be oxidised. When the battery is being charged, the process is reversed. The cathode is forced to be oxidised (by external voltage because the charging reaction has positive ΔG) and the anode is being reduced.

Further reading on battery research at Liverpool.

Further reading on battery, fuel cell and supercapacitor technology:
M. Winter and R. J. Brodd, Chem. Rev., 2004, 104, 4245-4270.


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LiFePO4|LiCoO2|LiMn2O4|LISICON|Graphite|Li4Ti5O12|Silicon

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