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6.5.3 Rechargeable Batteries
Coin-type nonaqueous rechargeable batteries are
used in the field of backup power source for electronic
devices, because of their advantages, such as high
energy density and light weight. In the case of a battery
based on lithium, lithium has to be pressure-welded or
electrochemically deposited to the negative electrode.
In these batteries, the selection of the material for
the gasket, which assures the air tightness and liquid
tightness of the battery, as well as the insulation of
the positive electrode and negative electrode cans is
particularly important. Poly(propylene) (PP) is con-
ventionally ...