| 查看: 3090 | 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.  QQ图片20151017104712.png |
回复此楼» 收录本帖的淘帖专辑推荐
 纳米技术与能源及模拟 | Nature Science Cell |
» 猜你喜欢
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
-
物理化学论文润色/翻译怎么收费?
已经有114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1人回复
-
瑞典-博后-固态电池-粘结剂-锂离子电池方向
已经有53人回复
-
广东省面上有什么动态么，啥时候公布呀？
已经有1人回复
-
高盐废水电催化氧化，氯离子存在下活性氯副产物、阳极选型的工程困惑
已经有0人回复
-
固相反应中颗粒形貌变化计算模拟学习求助
已经有0人回复
magicpopo
金虫 (著名写手)
电之炼金术士
- ECEPI: 1
- 应助: 90 (初中生)
- 贵宾: 0.33
- 金币: 1467.6
- 散金: 4
- 红花: 10
- 帖子: 1069
- 在线: 444.4小时
- 虫号: 264784
- 注册: 2006-07-09
- 性别: GG
- 专业: 电化学
3楼2015-10-17 14:33:25
jimmywhite419
银虫 (小有名气)
- 应助: 3 (幼儿园)
- 金币: 1680
- 散金: 5
- 红花: 2
- 帖子: 122
- 在线: 68小时
- 虫号: 345740
- 注册: 2007-04-14
- 专业: 电化学
4楼2015-10-17 16:08:38
foolishmani
铜虫 (职业作家)
- 应助: 31 (小学生)
- 金币: 11850.8
- 散金: 1147
- 红花: 19
- 帖子: 3200
- 在线: 1543.8小时
- 虫号: 1578969
- 注册: 2012-01-15
- 专业: 电化学
5楼2015-10-18 08:03:22
jimmywhite419
银虫 (小有名气)
- 应助: 3 (幼儿园)
- 金币: 1680
- 散金: 5
- 红花: 2
- 帖子: 122
- 在线: 68小时
- 虫号: 345740
- 注册: 2007-04-14
- 专业: 电化学
6楼2015-10-18 13:14:52
5