学术报告：锂离子电池高容量层状氧化正极材料研究

科学研究

学术交流

2018-04-24

报告题目：锂离子电池高容量层状氧化正极材料研究
报告人：禹习谦研究员（中科院物理所）
报告时间：2018年4月25日（周三）下午3:00
报告地点：联合楼A座二楼会议室

简介:
男，1982年10月出生。2001年至2005年在武汉大学物理科学与技术学院学习，2005年至2010年在中国科学院物理研究所硕博连读。2010年至2013年在美国Brookhaven国家实验室从事博士后研究，2013年至2016年4月为Brookhaven国家实验室助理研究员，2016年4月加入中国科学院物理研究所E01组工作，现任中国科学院“百人计划”特聘研究员，博士生导师。

主要研究方向:
（1）高能量密度锂离子电池与固态锂电池材料设计；（2）二次电池材料与器件的同步辐射原位表征；（3）锂离子电池材料与器件失效分析与逆向分析。

过去的主要工作及获得的成果:
近年来一直从事利用同步辐射光X射线衍射(XRD)与X射线吸收光谱(XAS)等技术研究二次电池材料体系储能机制与电池性能的构效关系。其研究方向涉及锂离子电池，钠离子电池，镁离子电池与锂硫电池等。至今已在包括Nature communications，Accounts of Chemical Research, Energy&Environmental Science，Advanced Energy Materials，Nano Letters在内的国际重要学术期刊上合作发表学术论文90余篇，引用4000余次，H因子37。

代表性论文及专利:
1. Probing the complexities of structural changes in layered oxide cathode materials for Li-Ion batteries during fast charge–discharge cycling and heating, E. Hu, X. Wang, X. Yu*, X.-Q. Yang, Acc. Chem. Res. (2018), DOI: acs.accounts.7b00506.
2. Structure-induced reversible anionic redox activity in Na layered oxide cathode, X. Rong, J. Liu, E. Hu, Y. Liu, Y. Wang, J. Wu, X. Yu*, K. Page, Y.-S. Hu*, W. Yang, H. Li, X.-Q. Yang, L. Chen, X. Huang, Joule (2018), 2, 125.
3. Synchrotron X-ray analytical techniques for studying materials electrochemistry in rechargeable batteries, F. Kin, Y. Liu, X. Yu, L. Chen, A. Singer, O. G. Shpyrko, H. Xin, N. Tamura, C. Tian, T. Weng, X.–Q. Yang, Y. Meng, D. Nordlund, W. Yang, M. M. Doeff, Chem. Rev. (2017), 117, 13123.
4. Finding a needle in the haystack: Identification of functionally important minority phases in an operating battery, K. Zhang, F. Ren, X. Wang, E. Hu, Y. Xu, X.-Q. Yang, H. Li, L. Chen, P. Pianetta, A. Mehta*, X. Yu*, Y. Liu*, Nano Lett. (2017), 17, 7782.
5. Na‐Ion intercalation and charge storage mechanism in 2D vanadium carbide, S. Bak, R. Qiao, W. Yang, S. Lee, X. Yu*, B. Anasori, H. Lee, Y. Gogotsi*, X.-Q. Yang*, Adv. Energy Mater. (2017), DOI: 10.1002/aenm.201700959.
6. Correlations between transition metal chemistry, local structure and global structure in Li2Ru0. 5Mn0. 5O3 investigated in a wide voltage window, Y. Lyu, E. Hu, D. Xiao, Y. Wang, X. Yu*, G. Xu, S. N. Ehrlich, K. Amine, L. Gu*, X.-Q. Yang, H. Li*, Chem. Mater. (2017), 29, 9053
7. Explore the effects of microstructural defects on voltage fade of Li- and Mn-rich cathodes, E. Hu, Y. Lyu, H. Xin, J. Liu, L.L. Han, S.M. Bak, J. Bai, X. Yu*, H. Li*, X.-Q. Yang*, Nano Lett. (2016), 16, 5999.
8. Direct observation of the redistribution of sulfur and polysufides in Li–S batteries during the first cycle by in situ X-ray fluorescence microscopy, X. Yu, H. Pan, Y. Zhou, P. Northrup, J. Xiao, S. Bak, M. Liu, K. Nam, D. Qu, J. Liu*, T. Wu, X.-Q. Yang*, Adv. Energy Mater. (2015), 5, 1500072.
9. Ti-substituted tunnel-type Na0.44MnO2 oxide as a negative electrode for aqueous sodium-ion batteries, Y. Wang, J. Liu, B. Lee, R. Qiao, Z. Yang, S. Xu, X. Yu*, L. Gu*, Y.-S. Hu*, W. Yang, K. Kang, H. Li, X.-Q. Yang, L. Chen, X. Huang, Nature Commun. (2015), 6, 6401.
10. A high capacity positive electrode material with tunnel-type structure for aqueous sodium-ion batteries", Y. Wang, L. Mu, J. Liu, Z. Yang, X. Yu*, L. Gu*, Y.-S. Hu*, H. Li, X.-Q. Yang, L. Chen, X. Huang, Adv. Energy Mater. (2015), 5, 1501005.
11. Understanding the rate capability of high-energy-density Li-rich layered Li1.2Ni0.15Co0.1Mn0.55O2 cathode materials", X. Yu, Y. C. Lyu, L. Gu, H. M. Wu, S. M. Bak, Y. N. Zhou, K. Amine, S. N. Ehrlich, H. Li*, K. W. Nam, X. -Q. Yang*, Adv. Energy Mater. (2014), 4, 1300950.
12. A size-dependent sodium storage mechanism in Li4Ti5O12 investigated by a novel characterization technique combining in situ X-ray diffraction and chemical sodiation", X. Yu, H. Pan, W. Wan, C. Ma, J. Bai, Q. Meng, S.N. Ehrlich, Y. -S. Hu*, X.-Q. Yang*, Nano Lett. (2013), 13, 4721.
13. A zero-strain layered metal oxide as the negative electrode for long-life sodium-ion batteries", Y. Wang#, X. Yu#, S. Xu, J. Bai, R. Xiao*, Y.-S. Hu*, H. Li, X.-Q. Yang, L.Q. Chen, X.J. Huang, Nature Commun. (2013), 4, 2365.