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2月18日，天津大学、华南理工大学等团队在《自然》（Nature）发表论文Practical lithium–organic batteries enabled by an n-type conducting polymer，报告他们研制出一种基于n型导电聚合物正极——聚苯并二呋喃二酮（PBFDO）——的实用化有机锂电池。该聚合物具有优异的混合离子-电子传输性能和低溶解性，可在-70℃至80℃的温度范围内高效工作。其实现了超高面载量聚合物正极（最高达206mg/cm²），面容量高达42mAh/cm²，且循环稳定性优异。研究团队还制备出实用化2.5Ah锂-有机软包电池，能量密度达到255 Wh/kg。
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input = input[:index] + chr(char) + input[index:]。业内人士推荐体育直播作为进阶阅读
霍洛維茲的興趣源自個人經驗：他在童年創傷後，母親曾在他睡著時輕聲給予安慰提示，這讓他的噩夢開始改變並逐漸消失。「它改變了我的夢，我也不再那麼害怕。」他說。
McFarland didn't know what was on the 10 rusty reels he dropped off at the Library of Congress' National Audio-Visual Conservation Center in Culpeper, Va. A Library article about the discovery describes the battered, pre-World War I artifacts as having been, "shuttled around from basements to barns to garages," and that they, "could no longer be safely run through a projector," owing to their delicate condition. "The nitrate film stock had crumbled to bits on some; other strips were stuck together," the article said. It was a lab technician in Michigan who suggested McFarland contact the Library of Congress.