A paper-like, polymer based rechargeable battery has been made by Japanese scientists.
With recent advances in the technology of portable electronic devices, there is a demand for flexible batteries to power them.
Drs Hiroyuki Nishide, Hiroaki Konishi and Takeo Suga at Waseda University have designed the battery - which consists of a redox-active organic polymer film around 200 nanometres thick. Nitroxide radical groups are attached, which act as charge carriers.
The battery has a high charge/discharge capacity because of its high radical density.
Dr Nishide said: "This is just one of many advantages the 'organic radical' battery has over other organic based materials which are limited by the amount of doping.
"The power rate performance is strikingly high - it only takes one minute to fully charge the battery. And it has a long cycle life, often exceeding 1,000 cycles."
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