Anode
The battery electrode that stores lithium when a lithium-ion battery is charged.
A lithium-ion battery stores charge by moving lithium between two electrodes. When it charges, lithium moves into the anode, which is usually graphite. Silicon can hold far more lithium, which is why nano-engineered silicon anodes are reaching phones and cars.
Where it matters
Technologies we track
- Silicon-carbon battery anodesStep 5 · EverydayA lithium-ion battery stores charge in its anode, usually made of graphite.
- Silicon nanowire battery anodesStep 4 · On saleInstead of graphite, the anode in Amprius's batteries is close to pure silicon grown as a dense forest of nanowires, more than a million per square centimeter.