| 查看: 929 | 回复: 7 | |||
| 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 | |||
莫木至尊木虫 (著名写手)
|
[交流]
交流In situ atomic-scale imaging of electrochemical lithiation in silicon 已有2人参与
|
||
|
In situ atomic-scale imaging of electrochemical lithiation in silicon In lithium-ion batteries, the electrochemical reaction between the electrodes and lithium is a critical process that controls the capacity, cyclability and reliability of the battery. Despite intensive study, the atomistic mechanism of the electrochemical reactions occurring in these solid-state electrodes remains unclear. Here, we show that in situ transmission electron microscopy can be used to study the dynamic lithiation process of single-crystal silicon with atomic resolution. We observe a sharp interface (～1 nm thick) between the crystalline silicon and an amorphous LixSi alloy. The lithiation kinetics are controlled by the migration of the interface, which occurs through a ledge mechanism involving the lateral movement of ledges on the close-packed {111} atomic planes. Such ledge flow processes produce the amorphous LixSi alloy through layer-by-layer peeling of the {111} atomic facets, resulting in the orientation-dependent mobility of the interfaces.[ Last edited by zlin on 2012-11-7 at 16:48 ] |
回复此楼» 猜你喜欢
中国科大电池方向任晓迪课题组招收2026级博士生-电解液/电池安全性/人工智能方向
已经有20人回复
-
26年秋季博士申请
已经有0人回复
-
物理化学论文润色/翻译怎么收费?
已经有162人回复
-
推荐给英语教学者的一本单词书《金鱼单词讲义：从26个拉丁字母到106万个英语单词》
已经有59人回复
-
推荐给教师的一本单词书《金鱼单词讲义：从26个拉丁字母到106万个英语单词》
已经有30人回复
-
核磁分析软件MestReNova打开文件时报错
已经有0人回复
-
在职博后不能申请博后基金了，那么在职博后意义何在？
已经有2人回复
-
青岛大学化学化工学院分子测量学研究院2026年招收博士研究生
已经有0人回复
» 本主题相关价值贴推荐，对您同样有帮助:
- ISAT(in situ adaptive tabulation)
已经有2人回复
- 【讨论】In situ NMR 讨论帖
已经有10人回复
- 【求助/交流】in situ 是什么意思？
已经有3人回复
Rainycc
木虫 (著名写手)
- ECEPI: 1
- 应助: 15 (小学生)
- 贵宾: 0.711
- 金币: 7131.8
- 散金: 1001
- 红花: 31
- 帖子: 2147
- 在线: 506.8小时
- 虫号: 446442
- 注册: 2007-10-29
- 性别: GG
- 专业: 电化学
5楼2012-11-08 01:00:44