MANY an engineer has dreamed of making a battery as light, thin and flexible as paper.

造出像纸张一样轻巧，纤薄，柔软的电池是许多工程师的梦想。

youdao

The team of Professor Keon Jae Lee from the Department of Materials Science and Engineering, KAIST has developed a high performance flexible all-solid-state battery, an essential energy source for flexible displays (see paper in Nano Letters: "Bendable Inorganic Thin-Film Battery for Fully Flexible Electronic Systems").

ENGADGET: Korean scientists solve flexible battery riddle (video)