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纳米级钻石使锂电池更安全

2017-09-07 06:31:52   中国青年网

中美两国科学家8月28日宣布,他们合作完成的一项研究显示,向锂电池的电解质里添加纳米尺度的钻石微粒,可以防止电池内部生成导致短路的沉积物,避免起火等事故。

研究人员把纳米钻石添加到锂电池电解质中,发现生成的沉积物是平滑的层状,而不是树枝状。这项新成果有望使锂电池兼具安全性和高性能。添加了纳米钻石的锂电池在实验中经受了长达200小时的稳定充放电循环,对一些工业应用来说这已足够,但要用于智能手机和笔记本电脑,还需进一步提高和验证性能。

本栏图文均据新华社

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