| 查看: 18422 | 回复: 386 | ||
| 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 | ||
[资源]
斯坦福大学崔毅再发牛文：半液态锂硫电池
|
||
 此技术已经被MIT Technology Review网站高调报导 http://www.technologyreview.com/ ... -store-solar-power/ Abstract Large-scale energy storage represents a key challenge for renewable energy and new systems with low cost, high energy density and long cycle life are desired. In this article, we develop a new lithium/polysulfide (Li/PS) semi-liquid battery for large-scale energy storage, with lithium polysulfide (Li2S8) in ether solvent as a catholyte and metallic lithium as an anode. Unlike previous work on Li/S batteries with discharge products such as solid state Li2S2 and Li2S, the catholyte is designed to cycle only in the range between sulfur and Li2S4. Consequently all detrimental effects due to the formation and volume expansion of solid Li2S2/Li2S are avoided. This novel strategy results in excellent cycle life and compatibility with flow battery design. The proof-of-concept Li/PS battery could reach a high energy density of 170 W h kg−1 and 190 W h L−1 for large scale storage at the solubility limit, while keeping the advantages of hybrid flow batteries. We demonstrated that, with a 5 M Li2S8 catholyte, energy densities of 97 W h kg−1 and 108 W h L−1 can be achieved. As the lithium surface is well passivated by LiNO3 additive in ether solvent, internal shuttle effect is largely eliminated and thus excellent performance over 2000 cycles is achieved with a constant capacity of 200 mA h g−1. This new system can operate without the expensive ion-selective membrane, and it is attractive for large-scale energy storage.  GA.gif  flow.batteryx299.jpg [ Last edited by laputagd on 2013-4-29 at 21:21 ] |
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 : Yuan_EES_2013.pdf
2013-04-29 21:20:42, 685.18 K
» 猜你喜欢
Renlab@monash全奖博士机会，最后三天！
已经有0人回复
-
今年面上没有消息，想来是没了，散个金攒攒人品，为明年祈福
已经有698人回复
-
物理化学论文润色/翻译怎么收费?
已经有58人回复
-
合肥工业大学854仪器技术综合专业课考研
已经有0人回复
-
27年电化学博士毕业，想找海外QS前50的高校读博后求推荐
已经有3人回复
-
27年电池/材料类博士申请
已经有2人回复
-
2027年博士申请或转博科研助理 求推荐
已经有1人回复
-
请问谁有2025最新影响因子Excel表？金币求助！
已经有53人回复
-
氯化钠与有机磺酸分离
已经有0人回复
-
瑞典-博后-固态电池-粘结剂-锂离子电池方向
已经有15人回复
262楼2013-09-09 19:47:38
简单回复
2013-04-29 21:25
回复
五星好评 顶一下，感谢分享！
owetowet3楼
2013-04-29 21:51
回复
五星好评 顶一下，感谢分享！
hkkung4楼
2013-04-29 21:55
回复
五星好评 顶一下，感谢分享！
gwang_785楼
2013-04-29 22:35
回复
五星好评 顶一下，感谢分享！
小中子6楼
2013-04-29 23:12
回复
五星好评 顶一下，感谢分享！
libehave7楼
2013-04-29 23:15
回复
五星好评 顶一下，感谢分享！
eclipse8楼
2013-04-30 07:26
回复
五星好评 顶一下，感谢分享！
抹云一公9楼
2013-04-30 08:22
回复
五星好评 顶一下，感谢分享！
gaegel10楼
2013-04-30 09:33
回复
五星好评 顶一下，感谢分享！
