1. Observation of electrode lithiation process and interfacial evolution in lithium ion battery by in-situ TEM technique
Speaker: Xi Chen
Advisor: Dr. Junjie Niu
Department of Materials, College of Engineering & Applied Science

2. Contents 1 2 3 4 5 Background of in-situ TEM
Motivation for electrode lithiation process observation 2
Nano Factory In-situ Holder 3 4
In-situ TEM Observation of Sn/C Hybrid Anodes 5
In-situ TEM Observation of 3D Sphere-Caged Sn/C Anodes

3. Background of in-situ TEM
In-situ TEM holder with experimental setup
TEM
In-situ heating experiment
In-situ gas based experiment
Morphology
In-situ piezotube and bias experiment
In-situ liquid cell experiment
Crystal structure
Element distribution

4. Motivation for electrode lithiation process observation
-10V to 10V
Piezo tube Li
Li2O/Solid Electrolyte
W Wire
Sample
Conductive Epoxy
Applied bias

5. Motivation for electrode lithiation process observation
Next generation Lithium ion battery anodes
Challenge 1: Volume expansion induced active materials pulverization
Challenge 2: Unstable SEI layer built outside of active materials
Y. Sun, N. Liu, Y. Cui, Nat. Energy 2016, 16071

6. 3D Sphere-Caged Sn/C Sample information
Sn/C anodes for in-situ observation
3D Sphere-Caged Sn/C Sample information
Sn/C Hybrid Nano Composites

7. In-situ TEM Observation of 3D Sphere-Caged Sn/C Anodes
Liu, Jinyun ; Chen, Xi ; Kim, Jinwoo ; Zheng, Qiye ; Ning, Hailong ; Sun, Pengcheng ; Huang, Xingjiu ; Liu, Jinhuai ; Niu, Junjie ; Braun, Paul V, Nano letters, 13 July 2016, Vol.16(7), pp

8. In-situ TEM Observation of Sn/C Hybrid Anodes
Liu, Jinyun ; Lin, Xirong ; Chen, Xi ; Shen, Zihan ; Chi, Miaofang ; Niu, Junjie ; Zhang, Huigang ; Huang, Jiarui ; Li, Jinjin, Chemical Communications, 2017, Vol.53(98), pp

9. References
[1] Xu, Wu ; Wang, Jiulin ; Ding, Fei ; Chen, Xilin ; Nasybulin, Eduard ; Zhang, Yaohui ; Zhang, Ji-guang, Energy & Environmental Science, 2014, Vol.7(2), pp
[2] Ghassemi, Hessam ; Au, Ming ; Chen, Ning ; Heiden, Patricia A. ; Yassar, Reza S. Applied Physics Letters, 19 September 2011, Vol.99(12).
[3] Liu, Xiao Hua ; Zhong, Li ; Zhang, Li Qiang ; Kushima, Akihiro ; Mao, Scott X. ; Li, Ju ; Ye, Zhi Zhen ; Sullivan, John P. ; Huang, Jian Yu
Applied Physics Letters, 02 May 2011, Vol.98(18)
[4] Zeng, Zhiyuan ; Liang, Wen-I ; Liao, Hong-Gang ; Xin, Huolin L ; Chu, Yin-Hao ; Zheng, Haimei, Nano letters, 2014, Vol.14(4), pp
[5] Mehdi, B L ; Qian, J ; Nasybulin, E ; Park, C ; Welch, D A ; Faller, R ; Mehta, H ; Henderson, W A ; Xu, W ; Wang, C M ; Evans, J E ; Liu, J ; Zhang, J-G ; Mueller, K T ; Browning, N D, Nano letters, 11 March 2015, Vol.15(3), pp
[6] Kushima, Akihiro ; So, Kang Pyo ; Su, Cong ; Bai, Peng ; Kuriyama, Nariaki ; Maebashi, Takanori ; Fujiwara, Yoshiya ; Bazant, Martin Z. ; Li, Ju
Nano Energy, February 2017, Vol.32, pp
[7] Y. Sun, N. Liu, Y. Cui, Nat. Energy 2016, 16071
[8] Liu, Jinyun ; Chen, Xi ; Kim, Jinwoo ; Zheng, Qiye ; Ning, Hailong ; Sun, Pengcheng ; Huang, Xingjiu ; Liu, Jinhuai ; Niu, Junjie ; Braun, Paul V, Nano letters, 13 July 2016, Vol.16(7), pp
[9] Liu, Jinyun ; Lin, Xirong ; Chen, Xi ; Shen, Zihan ; Chi, Miaofang ; Niu, Junjie ; Zhang, Huigang ; Huang, Jiarui ; Li, Jinjin, Chemical Communications, 2017, Vol.53(98), pp

10. Thank you