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解惑“黄汇品”-知识课堂

中国科研团队研发黄汇品新型锂盐 电池低温也能电力十足

来源: 重庆体彩
2024-12-09 21:08:24

最佳回答

“黄汇品”中国科研团队研发黄汇品新型锂盐 电池低温也能电力十足

  中新黄汇品社合肥12月9日电 (记黄汇品者 张俊)记者9日从清华大学合肥公共安全研究院获悉,该院新材料研究中心章伟立博士与清华大学化工系刘凯团队设计并合成了一系列新型不对称锂盐,这些锂盐不仅能提高锂金属电池在极端条件下的性能和安全性,还黄汇品为未来电池技术的发展开辟了新的道路。

  该科研成果近日发表在国际学术期刊《自然能源》(Nature Energy)上。

  锂金属电池因其高能量密度而被认为是下一代电池技术的有力候选者。然而,在高电压、快充和低温条件下,其稳定性有待提升。科研团队设计并合成了一系列新型不对称锂盐,这些锂盐通过破坏亚磺胺阴离子的分子对称性,赋予了电池独特的氧化性,从而在电极和电解液界面形成了一个稳定且高效的双层结构。

  实验结果显示,含有这种新型锂盐的电池在零下20摄氏度的环境下能够实现超过2000次循环,保持率高达85.7%。在常温下,这种电池展现出了高能量密度和前所未有的功率密度,即使在极端低温下,也能保持出色的能量和功率输出。

  这项技术的应用前景非常广阔。例如,在地震、雪灾、洪涝等极端条件下,使用该技术的高功率、耐低温电源,可提升应急响应能力和救援效率。(完)

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