24小时热门版块排行榜

返回列表

【奖励】本帖被评价85次，作者xiejf增加金币 67.2 个

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

xiejf

专家顾问 (文学泰斗)

[资源] EES最新成果：可充电锂电池---下一代的高能、高功率电池

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 ]

回复此楼

» 本帖附件资源列表

欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com
附件 1 : Reviving rechargeable lithium metal batteries： enabling next-generation high-energy and high-power cells.pdf

2011-12-12 21:49:11, 1.5 M

» 收录本帖的淘帖专辑推荐

电化学-电池材料	纳米技术与能源及模拟	Nano&Micro	英文文献或者教材
纳米化学/电化学综述	光催化专辑	锂电	Next energy revolution