24小时热门版块排行榜    

北京石油化工学院2026年研究生招生接收调剂公告
查看: 2824  |  回复: 12
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

jimmywhite419

银虫 (小有名气)

[交流] Nature com.上新出的锂硫电池文章,跟大家讨论分享一下 已有8人参与

Nature com.上新出的锂硫电池文章,跟大家讨论分享一下:
http://www.nature.com/ncomms/201 ... ull/ncomms9622.html

Encapsulation of sulfur with thin-layered nickel-based hydroxides for long-cyclic lithium–sulfur cells
Abstract:Elemental sulfur cathodes for lithium/sulfur cells are still in the stage of intensive research
due to their unsatisfactory capacity retention and cyclability. The undesired capacity
degradation upon cycling originates from gradual diffusion of lithium polysulfides out of the
cathode region. To prevent losses of certain intermediate soluble species and extend lifespan
of cells, the effective encapsulation of sulfur plays a critical role. Here we report an applicable
way, by using thin-layered nickel-based hydroxide as a feasible and effective encapsulation
material. In addition to being a durable physical barrier, such hydroxide thin films can
irreversibly react with lithium to generate protective layers that combine good ionic
permeability and abundant functional polar/hydrophilic groups, leading to drastic improvements
in cell behaviours (almost 100% coulombic efficiency and negligible capacity decay
within total 500 cycles). Our present encapsulation strategy and understanding of hydroxide
working mechanisms may advance progress on the development of lithium/sulfur cells for
practical use.

Nature com.上新出的锂硫电池文章,跟大家讨论分享一下
QQ图片20151017104712.png
回复此楼
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

jimmywhite419

银虫 (小有名气)

引用回帖:
5楼: Originally posted by foolishmani at 2015-10-18 08:03:22
感觉文章新意和数据都没有我最近的AEM好!NiOH不是典型的电容材料么?

就是看到用氢氧化镍用来做这个,所以觉得很好奇。文章里面貌似说了一些原理,但是不完全明白
6楼2015-10-18 13:14:52
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 13 个回答

magicpopo

金虫 (著名写手)

电之炼金术士


小木虫: 金币+0.5, 给个红包,谢谢回帖
图3的a图,图4的b图
做过锂硫的简单算一下
3楼2015-10-17 14:33:25
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

jimmywhite419

银虫 (小有名气)

引用回帖:
2楼: Originally posted by fdbxlq at 2015-10-17 14:15:21
讨论什么?

话说氢氧化物做壳层材料,用于锂电池电池体系是否合适?

[ 发自手机版 http://muchong.com/3g ]
4楼2015-10-17 16:08:38
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

foolishmani

铜虫 (职业作家)


小木虫: 金币+0.5, 给个红包,谢谢回帖
感觉文章新意和数据都没有我最近的AEM好!NiOH不是典型的电容材料么?
5楼2015-10-18 08:03:22
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
普通表情 高级回复 (可上传附件)
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考研] 071000生物学,一志愿深圳大学296分,求调剂 +3 TIckLw 2026-04-06 3/150 2026-04-06 23:12 by 52305043001
[考研] 295求调剂 +15 xndjjj 2026-04-04 16/800 2026-04-06 23:07 by chenzhimin
[考研] 327求调剂 +5 Xxjc1107. 2026-04-06 5/250 2026-04-06 21:43 by dongzh2009
[考研] 工科277分求调剂材料 +8 上了上了上哦 2026-04-05 9/450 2026-04-05 13:05 by wwytracy
[考研] 调剂 +3 好好读书。 2026-04-02 3/150 2026-04-05 13:02 by arrow8852
[考研] 材料专硕322分 +11 哈哈哈吼吼吼哈 2026-04-02 11/550 2026-04-04 23:37 by 永字号
[考研] 专硕310求调剂 +5 捞捞我…. 2026-04-04 6/300 2026-04-04 23:33 by barlinike
[考研] 可跨专业调剂 +3 周的得地 2026-04-04 6/300 2026-04-04 22:21 by barlinike
[考研] 338求调剂 +7 晟功? 2026-04-03 7/350 2026-04-04 20:37 by 蓝云思雨
[考研] 368求调剂 +5 今华习 2026-04-03 7/350 2026-04-04 18:47 by imissbao
[考研] 265求调剂 +20 梁梁校校 2026-04-01 21/1050 2026-04-04 00:38 by userper
[考研] 考研调剂 +3 Draa 2026-04-03 3/150 2026-04-03 17:37 by hgwz7468
[考研] 338求调剂 +7 晟功? 2026-04-03 7/350 2026-04-03 16:46 by wxiongid
[考研] 282求调剂 +5 呼吸都是减肥 2026-03-31 5/250 2026-04-03 12:03 by 1753564080
[考研] 303求调剂 +3 一色清羽 2026-04-02 4/200 2026-04-03 10:22 by 蓝云思雨
[考研] 262求调剂 +6 励志一定发文章 2026-04-02 7/350 2026-04-03 09:54 by linyelide
[考研] 348求调剂 +6 吴彦祖24k 2026-04-02 6/300 2026-04-02 14:07 by 给你你注意休息
[考研] 298求B区调剂 +4 zzz,,r 2026-04-02 5/250 2026-04-02 12:17 by 土木硕士招生
[考研] 270调剂 +7 maxjxbsk 2026-04-02 7/350 2026-04-02 09:50 by yulian1987
[考研] 土木304求调剂 +6 兔突突突, 2026-03-31 7/350 2026-04-02 09:06 by coolminer
信息提示
请填处理意见