图片里的小玩意儿是一个充电电池，小日本的发明。充满电的时间仅为一分钟（不过不知道是多少毫安），可重复充电放电1000次，由某种有机纳米材料制成。

下面是一些Tech-talk:

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. Because of its high radical density, the battery has a high charge/discharge capacity. This is just one of many advantages the ‘organic radical’ battery has over other organic based materials according to the researchers.

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