Currently, the majority of batteries "general public" is marketed type Li-ion. These batteries have indeed gradually replaced the old Ni-Cd and Ni-MH. The National Institute of Advanced Industrial Science and Technology (AIST) Japanese works, however - as other laboratories around the world - on a new battery technology that could eventually replace the Ni-ion.

Nickel and lithium

Technology Li-Ni (Nickel-lithium) and combine the storage capacity Ni-MH with the voltage per cell of Li-Ion. The nickel cathode and anode in lithium are separated by an electrolyte and an organic film ceramic. On arrival, a Ni-Li would show a voltage of 3.49v per cell and a capacity of 268 Ah / kg, the energy density up to 935 WH / kg. For comparison, the voltage per cell of a Ni-MH battery does not exceed 1.32 V and the energy density of a Li-ion battery is up to 450 WH / kg.

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Still, this technology is still in its infancy, and it should therefore take some years before the Ni-Li n'inondent market. We hope that scientists are able to resolve the remaining issues...