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xiejf专家顾问 (文学泰斗)
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EES最新成果：可充电锂电池---下一代的高能、高功率电池
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Reviving rechargeable lithium metal batteries： enabling next-generation high-energy and high-power cells Herein reported is a fundamentally new strategy for reviving rechargeable lithium (Li) metal batteries and enabling the emergence of next-generation safe batteries featuring a graphene-supported Li metal anode, including the highly promising Li–sulfur, Li–air, and Li–graphene cells with exceptionally high energy or power densities. All the Li metal anode-based batteries suffer from a high propensity to form Li dendrites (tree-like structures) at the anode upon repeated discharges/charges. A dendrite could eventually penetrate through the separator to reach the cathode, causing internal short-circuiting and even explosion, the main reason for the battery industry to abandon rechargeable lithium metal batteries in the early 1990s. By implementing graphene sheets to increase the anode surface areas, one can significantly reduce the anode current density, thereby dramatically prolonging the dendrite initiation time and decreasing the growth rate of a dendrite, if ever initiated, possibly by a factor of up to 1010 and 105, respectively. 文章主要介绍最近兴起的Li-S、Li-Air、Li-Graphene电池，使用单质锂作为对电极。  [ 来自科研家族 新能源家族 ] [ Last edited by xiejf on 2011-12-12 at 21:55 ] |
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2011-12-12 21:49:11, 1.5 M
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73楼2013-10-03 10:36:48
简单回复
2011-12-13 12:57
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五星好评 顶一下，感谢分享！
dhch4楼
2011-12-13 14:48
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xldongcn5楼
2011-12-13 15:30
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五星好评 顶一下，感谢分享！
yuan9996楼
2011-12-13 15:59
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五星好评 顶一下，感谢分享！
2011-12-13 16:39
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五星好评 顶一下，感谢分享！
2011-12-13 16:47
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五星好评 顶一下，感谢分享！
吓吓虫10楼
2011-12-13 18:14
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zilongchn11楼
2011-12-13 18:32
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byj9712楼
2011-12-13 20:37
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2011-12-13 22:19
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aonic14楼
2011-12-13 22:30
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