Miniaturization in electronics and vapid advances in portable devices
demand lightweight, compact, high-energy density batteries. Lithium ba
tteries offer several advantages such as higher cell voltage, higher e
nergy density, and longer shelf life as compared to other rechargeable
systems. Although the rocking-chair concept of utilizing insertion co
mpounds as both cathode and anode hosts has made the rechargeable lith
ium batteries a commercial reality, cost and environmental considerati
ons require the development of inexpensive electrode hosts stich as ma
nganese oxides for consumer applications. Innovative synthesis and pro
cessing procedures (including low-temperature, solution-based synthesi
s approaches to obtain amorphous and nanocrystalline oxide electrode h
osts) play a key role in developing ne io as well as better-performing
known electrode materials.