Tin-based amorphous oxide: A high-capacity lithium-ion-storage material
- Fujifilm Celltec, Miyagi (Japan)
- Fuji Photo Film, Kanagawa (Japan); and others
A high-capacity lithium-storage material in metal-oxide form has been synthesized that can replace the carbon-based lithium intercalation materials currently in extensive use as the negative electrode (anode) of lithium-ion rechargeable batteries. This tin-based amorphous composite oxide (TCO) contains Sn(II)-O as the active center for lithium insertion and other glass-forming elements, which make up an oxide network. The TCO anode yields a specific capacity for reversible lithium adsorption more than 50 percent higher than those of the carbon families that persists after charge-discharge cycling when coupled with a lithium cobalt oxide cathode. Lithium-7 nuclear magnetic resonance measurements evidenced the high ionic state of lithium retained in the charged state, in which TCO accepted 8 moles of lithium ions per unit mole. 15 refs., 5 figs.
- OSTI ID:
- 539116
- Journal Information:
- Science, Vol. 276, Issue 5317; Other Information: PBD: 30 May 1997
- Country of Publication:
- United States
- Language:
- English
Similar Records
Copper-tin anodes for rechargeable lithium batteries : an example of the matrix effect in an intermetallic system.
Batteries: Overview of Battery Cathodes