Electrolytes for advanced batteries

The choices of the components of the electrolyte phase for advanced batteri es (lithium and lithium ion batteries) are very sensitive to the electrodes which are used. There are also a number of other requirements for the elec trolyte phase, which depend on the cell design and the materials chosen for the battery. The difficulty of choice is compounded when the cell is a rec hargeable one. This paper looks at each of these requirements and the degre e to which they are met for lithium and Lithium ion batteries. The discussi on is broken into sections on anode or negative electrode stability require ments, cathode or positive electrode stability requirements, conductivity n eeds, viscosity and wetting requirements. The effects of these properties a nd interactions on the performance of batteries are also discussed. (C) 199 9 Elsevier Science S.A. All rights reserved.