| 查看: 1692 | 回复: 6 | |||||
Parker一班木虫 (正式写手)
水牛生态学家
|
[交流]
大牛Marnix Wagemaker最新锂电力作（Nature Communications，2015年9月28日） 已有5人参与
|
|
题目：Direct view on the phase evolution in individual LiFePO4 nanoparticles during Li-ion battery cycling 作者：Xiaoyu Zhang1, Martijn van Hulzen1, Deepak P. Singh1, Alex Brownrigg2, Jonathan P. Wright2, Niels H. van Dijk1 & Marnix Wagemaker1 1 Department of Radiation Science and Technology, Delft University of Technology, Mekelweg 15, 2629JB Delft, The Netherlands. 2 European Synchrotron Radiation Facility, 6 rue Jules Horowitz, BP 220, 38043 Grenoble Cedex, France. 摘要：Phase transitions in Li-ion electrode materials during (dis)charge are decisive for battery performance, limiting high-rate capabilities and playing a crucial role in the cycle life of Li-ion batteries. However, the difficulty to probe the phase nucleation and growth in individual grains is hindering fundamental understanding and progress. Here we use synchrotron microbeam diffraction to disclose the cycling rate-dependent phase transition mechanism within individual particles of LiFePO4, a key Li-ion electrode material. At low (dis)charge rates well-defined nanometer thin plate-shaped domains co-exist and transform much slower and concurrent as compared with the commonly assumed mosaic transformation mechanism. As the (dis)charge rate increases phase boundaries become diffuse speeding up the transformation rates of individual grains. Direct observation of the transformation of individual grains reveals that local current densities significantly differ from what has previously been assumed, giving new insights in the working of Li-ion battery electrodes and their potential improvements.  Wagemaker.jpg |
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 : Wagemaker_Nature_Communications_2015.pdf
2015-09-28 02:32:05, 744.71 K
» 收录本帖的淘帖专辑推荐
 锂电资源共享 | 纳米技术与能源及模拟 |
» 猜你喜欢
南大化学调剂
已经有11人回复
-
硫酸钠溶液浓度与密度曲线
已经有0人回复
-
物理化学论文润色/翻译怎么收费?
已经有79人回复
-
0703调剂
已经有4人回复
-
1
已经有21人回复
-
0703 调剂
已经有6人回复
-
招收
已经有0人回复
-
西南某211招27届博士
已经有30人回复
-
大连工业杰青/长江团队-生物质材料-储能电池方向招收2026级博士生
已经有0人回复
-
求调剂一志愿海大，0703化学学硕304分，有大创项目，四级已过
已经有10人回复
lqingh506
铁杆木虫 (知名作家)
- 应助: 314 (大学生)
- 金币: 10859.9
- 散金: 1523
- 红花: 75
- 帖子: 7623
- 在线: 3397.9小时
- 虫号: 723546
- 注册: 2009-03-15
- 性别: GG
- 专业: 无机非金属类光电信息与功
2楼2015-09-28 07:53:15
莫小陌93
铁虫 (小有名气)
- 应助: 1 (幼儿园)
- 金币: 244.4
- 散金: 20
- 帖子: 112
- 在线: 54.5小时
- 虫号: 3620241
- 注册: 2014-12-30
- 专业: 无机非金属类光电信息与功
3楼2015-09-28 14:51:45
  |
4楼2015-09-29 08:14:48
5楼2015-10-06 20:50:49
|
|
6楼2018-05-30 15:17:27
|
|
7楼2018-05-30 15:17:43
