24小时热门版块排行榜

返回列表

【奖励】本帖被评价87次，作者xiajimu增加金币 68.4 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

xiajimu

铁杆木虫 (知名作家)

应助: 1703 (讲师)
金币: 12573.5
帖子: 5940
在线: 2164.6小时
虫号: 288243

[资源] Nature communications 新文章 A reversible long-life lithium–air battery

最新nature comnunucations的Li-air电池，通过改变电解质和阴极材料，有效提高稳定性和可逆能力。
非常有指导意义。
摘要：
Electrolyte degradation, Li dendrite formation and parasitic reactions with H2O and CO2 are
all directly correlated to reversibility and cycleability of Li–air batteries when operated in
ambient air. Here we replace easily decomposable liquid electrolytes with a solid Li-ion
conductor, which acts as both a catholyte and a Li protector. Meanwhile, the conventional
solid air cathodes are replaced with a gel cathode, which contacts directly with the solid
catholyte to form a closed and sustainable gel/solid interface. The proposed Li–air cell has
sustained repeated cycling in ambient air for 100 cycles (B78 days), with discharge capacity
of 2,000mAhg1. The recharging is based largely on the reversible reactions of Li2CO3
product, originating from the initial discharge product of Li2O2 instead of electrolyte degradation.
Our results demonstrate that a reversible long-life Li–air battery is attainable by
coordinated approaches towards the focal issues of electrolytes and Li metal.

文章见附件

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 : ncomms2855.pdf

2013-05-08 17:26:10, 1.21 M

» 收录本帖的淘帖专辑推荐

锂离子电池研究	锂电资源共享	先进材料	万卷阁之搜神记
文献推荐	新能源新材料	电化学电源、电源管理	科技
Li Battery	锂电前沿企业	微米纳米