Raghu Das, IDTechEx CEO09.02.15
Batteries have not been a triumph of rapid innovation. From lead acid, nickel-cadmium, to nickel-metal-hydride and lithium-ion batteries, the development of batteries has significantly lagged many other components. For example, lithium-ion batteries, which are the mostly successful commercial battery system nowadays, have only seen a 1.6 times improvement in energy density over the last 24 years. Not exactly a follower of Moore’s law like progress. It is already very optimistic to expect the energy density of lithium-ion battery to increase another 30% in five years time. Materials that can be chosen for the battery development are also limited. Companies see the challenge – and opportunity.
One significant development has been flexible battery technologies. However, even though thin, flexible batteries have been available for more than 15 years, they have had limited commercial success. That is not really a surprise: they have been more expensive, offer lower capa
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