| Charging |
|
Discharging |
 |
 |
| When the battery is charged, the
lithium ions in the cathode material (lithium compound) migrate
via a separator to between the layers of carbon material that
form the anode, and a charging current flows. |
When the battery is discharged, the
lithium ions in the carbon material that form the anode migrate
via a separator to the cathode material (lithium compound),
and a discharging current flows. |
|
| Battery
ionic equation (charging) |
|
Battery
ionic equation (discharging) |
| Cobalt type: |
|
LiCoO2+Cn ---> Li1-XCoO2+CnLix
|
| Manganese type: |
|
LiMn2O4+Cn
---> Li1-XMn2O4+CnLix
|
|
| Cobalt type: |
|
Li1-XCoO2+CnLix
---> LiCoO2+Cn
|
| Manganese type: |
|
Li1-XMn2O4+CnLix
---> LiMn2O4+Cn
|
|
| Lithium ion rechargeable batteries operate
based simply on this theory of lithium ions migrating
between the cathode and anode. Lithium ion rechargeable
batteries are therefore fundamentally different from non-rechargeable
lithium batteries in that the basic form of the cathode
and anode materials does not change. |
|
