| 查看: 2438 | 回复: 8 | ||||||
| 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]
锂电大牛Guozhong Cao最新钠离子电池力作（Chem Mater，2015年10月13日） 已有7人参与
|
|||||
|
题目：Elucidating the Role of Defects for Electrochemical Intercalation in Sodium Vanadium Oxide 作者：Evan Uchaker, Hongyun Jin, Pei Yi, and Guozhong Cao* Department of Materials Science & Engineering, University of Washington, Seattle, Washington 98195, United States 摘要：Na1.25+xV3O8 (with x < 0, = 0, and > 0) was synthesized via a wet chemical route involving the reduction of V2O5 in oxalic acid and NaNO3 followed by calcination. It was possible to control the sodium composition in the final product by adjusting the amount of sodium precursor added during synthesis. It was revealed that deficient and excessive sodium contents, with respect to the ideal stoichiometry, are accommodated or compensated by the respective generation of oxygen vacancies and partial transition metal reduction, or cation disordering. When examined as NIB electrode material, the superior performance of the cation disordered material with excessive sodium was clearly demonstrated, with more than 50% higher storage capacity and superior rate capacity and cyclic stability. The formation of oxygen vacancies initially seemed promising but was coupled with stability issues and capacity fading upon further cycling. The disparity in electrochemical performance was attributed to variations in the electronic distribution as promoted through Na–ion interactions and the direct influence of such on the oxygen framework (sublattice); these factors were determined to have significant impact on the migration energy and diffusion barriers.  cm-2015-029355_0004.gif |
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 : GuozongCao_ChemMater_2015.pdf
2015-10-12 13:22:36, 542.23 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 | 锂电 钠电 超电容 |
» 本帖已获得的红花（最新10朵）
qq394871254» 猜你喜欢
化学-化工-材料-食品-生物-环境2026年研究生调剂（可以不考数学）
已经有0人回复
-
化学-化工-材料-食品-生物-环境-农业 2026年研究生调剂（可以不考数学）
已经有1人回复
-
物理化学论文润色/翻译怎么收费?
已经有256人回复
-
070300一志愿211，312分求调剂院校
已经有12人回复
-
26年储能、电池方向博士申请
已经有0人回复
-
070300化学求调剂
已经有11人回复
-
青岛大学化学化工学院2026年招收调剂硕士研究生
已经有0人回复
-
北方工业大学085808储能技术-02方向（电池）接收调剂生
已经有0人回复
-
272求调剂，接受跨专业调剂！
已经有3人回复
-
有一区TOP论文，求调剂
已经有16人回复
-
大连工业大学杰青/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4人回复
qq394871254
金虫 (正式写手)
院士
- ECEPI: 1
- 应助: 137 (高中生)
- 金币: 464.9
- 散金: 816
- 红花: 28
- 帖子: 990
- 在线: 472.7小时
- 虫号: 1157563
- 注册: 2010-11-28
- 专业: 电化学
4楼2015-10-13 14:18:55
|
感谢分享 发自小木虫Android客户端 |
2楼2015-10-12 13:59:47
东神
木虫 (正式写手)
- 应助: 6 (幼儿园)
- 金币: 3397.4
- 散金: 496
- 红花: 6
- 帖子: 708
- 在线: 309.6小时
- 虫号: 848716
- 注册: 2009-09-15
- 性别: GG
- 专业: 无机材料化学
3楼2015-10-13 08:58:42
Parker一班
木虫 (正式写手)
水牛生态学家
- 应助: 6 (幼儿园)
- 金币: 3641.7
- 散金: 27
- 红花: 57
- 帖子: 882
- 在线: 159.4小时
- 虫号: 2499414
- 注册: 2013-06-07
- 性别: MM
- 专业: 电化学
7楼2015-10-30 19:14:30
