(Invited) HighPower Na-Ion Batteries with Long Cycle Life

Abstract

In the last decade, many interesting cathode and anode materials have been proposed for Na-ion batteries1-20. Among them, layered oxide cathodes and disordered carbon anodes would be the focus of the first generation of commercial Na-ion batteries. In this talk, firstly, I will introduce a series of Na-Cu-Fe-Mn-O cathodes on the basis of our finding of electroactivity of Cu2+/Cu3+ redox couple in Na containing layered oxides 6-8 and Nax[Li1-yMny]O2 cathode based on reversible oxygen redox couple19,20. Secondly, I will present a series of carbon anodes from anthracite and biomass14-18. Thirdly, prototype Na-ion cells with capacity of 1-12 Ah were fabricated and and their electrochemical and safety performance of Na-ion cells will be presented. Most impressively, the cycle life of such cells can reach 4800 times at a high rate of 2C. Finally, the first 100kWh Na-ion battery energy storage system was demonstrated and their technical details will be disclosed. Reference s : Pan, H. L.; Hu, Y.-S.*; Chen, L. Q. Energy & Environmental Science 2013, 6, 2338-2360.Zhao, C.L.; ...; Hu, Y.-S.* Science 2020, 370, 708-711.Zhao, C.L.; ...; Hu, Y.-S.* JACS 2020, 142, 5742-5750.Sun, Y.; Zhao, L.; Pan, H. L.; Lu, X.; Gu, L.*; Hu, Y.-S.*; et al. Nature Communications 2013, 4, 1870.Wang, Y. S.; ...; Hu, Y.-S.*; et al. Nature Communications 2013, 4, 2365.Xu, S. Y.; Wu, X. Y.; Li, Y. M.; Hu, Y.-S.*; Chen, L.-Q. Chinese Physics B 2014, 23, 118202.Li, Y. M.; Yang, Z.; Xu, S.; Mu, L.; Gu, L.*; Hu, Y.-S.*; et al., Advanced Science 2015, 2, 1500031.Mu, L. Q.; Xu, S.; Li, Y.; Hu, Y.-S.*; Li, H.; Chen, L.; Huang, X., Advanced Materials 2015, 27, 6928.Wang, Y.; Xiao, R.; Hu, Y.-S.*; Avdeev, M.*; Chen, L., Nature Communications 2015, 6, 6954.Wang, Y.; ...; Hu, Y.-S.*; et al. Nature Communications 2015, 6, 6401.Wang, Y.; ...; Hu, Y.-S.*; et al., Advanced Energy Materials 2015, 5, 1501005.Xu, S.; ...; Hu, Y.-S.*; et al., Advanced Energy Materials 2015, 5, 1501156.Wu, Y.; ...; Hu, Y.-S.*; et al., Science Advances 2015, 1, e1500330.Li, Y. M.; Lu, Y.; Hu, Y.-S.* et al.; Energy Storage Materials 2017, 7, 130.Li, Y. M.; Hu, Y.-S.* et Energy Storage Materials 2016, 5, 191.Lu, Y.; ...; Hu, Y.-S.* Advanced Energy Materials 2018, 8, 1800108.Zhao, C.; Wang, Q.; Lu, Y.X.*; ...; Hu, Y.-S.* Science Bulletin, 2018, 63, 1125.Meng, Q.; Lu, Y.X.*; ...; Hu, Y.-S.* ACS Energy Letters 2019, 4, 2608-2612.Rong, X.; Liu, J.; Hu, E.; ... ; Hu, Y.-S.*, et Joule 2018, 2, 2348-2363.20. Rong, X.; Hu, E.; Lu, Y.; ...; Hu, Y.-S.*, et al., Joule 2019, 3, 503-517. Yong-Sheng Hu is a full professor at the Institute of Physics, Chinese Academy of Sciences. He received his Ph.D. in Condensed Matter Physics from IoP-CAS with Prof. Liquan Chen in 2004, and then moved to Max Planck Institute for Solid State Research as Postdoc and Principal researcher. After a short stay at the University of California at Santa Barbara, he joined IoP-CAS in 2008 and is working on advanced materials for long-life stationary batteries and their energy storage mechanism, particularly focusing on Na based batteries. His recent original contributions include: propose the use of “cationic potential” to predict the O and P stacking structures; discover the electroactivity of Cu2+/Cu3+ redox couple in sodium containing oxides and design a series of air-stable and Co-/Ni-free Na-Cu-Fe-Mn-O cathode materials for Na-ion batteries; propose a superior low-cost amorphous carbon made from anthracite as an anode for Na-ion batteries; design zero-strain anode materials for sodium-ion batteries; propose a “Solvent-in-Salt” electrolyte; etc. He has published over 200 internationally refereed SCI publications including Science、Nature Mater.、Nature Energy、Joule、Nature Commun.、Science Adv.、etc, which have been cited over 26000 times according to ISI web of science with an H-index of 86. He was selected as a Thomson Reuters Highly Cited Researchers from 2014 to 2020. He became the senior Editor of ACS Energy Letters from October of 2018. He also received several awards and honors, such as The National Science Fund for Distinguished Young Scholars, The 14th China Youth Science and Technology Award, Tajima Prize, Fellow of The Institute of Physics (UK), Fellow of The Royal Society of Chemistry, etc. Figure 1