| 查看: 1951 | 回复: 6 | |||||
| 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 | |||||
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
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
-
物理化学论文润色/翻译怎么收费?
已经有146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
 |
6楼2018-05-30 15:17:27
 |
4楼2015-09-29 08:14:48
|
|
7楼2018-05-30 15:17:43
投票:
