The work on new battery systems was outlined by Dr Peter Walther, senior vice-president of chemicals company BASK The work is driven by the increased need for energy storage systems, both in mobile applications such as electric cars as well as renewable stationary systems such as solar and wind generators which operate only intermittently. The most advanced batteries at present for mobile use are lithium-ion batteries. Compared with conventional lead-acid or nickel-cadmium ones, they offer higher power to energy (torque/driving range) ratios and a life of up to 1000 recharging cycles, Walther said. Key cost factors are the price of metals such as cobalt, manganese and nickel used for the cathode.
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