@article{Yang:2020:10.1007/s12274-020-2623-1,
author = {Yang, K and Jia, L and Liu, X and Wang, Z and Wang, Y and Li, Y and Chen, H and Wu, B and Yang, L and Pan, F},
doi = {10.1007/s12274-020-2623-1},
journal = {Nano Research},
pages = {412--418},
title = {Revealing the anion intercalation behavior and surface evolution of graphite in dual-ion batteries via in situ AFM},
url = {http://dx.doi.org/10.1007/s12274-020-2623-1},
volume = {13},
year = {2020}
}

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TY  - JOUR
AB  - Graphite as a positive electrode material of dual ion batteries (DIBs) has attracted tremendous attentions for its advantages including low lost, high working voltage and high energy density. However, very few literatures regarding to the real-time observation of anion intercalation behavior and surface evolution of graphite in DIBs have been reported. Herein, we use in situ atomic force microscope (AFM) to directly observe the intercalation/de-intercalation processes of PF6− in graphite in real time. First, by measuring the change in the distance between graphene layers during intercalation, we found that PF6− intercalates in one of every three graphite layers and the intercalation speed is measured to be 2 µm·min−1. Second, graphite will wrinkle and suffer structural damages at high voltages, along with severe electrolyte decomposition on the surface. These findings provide useful information for further optimizing the capacity and the stability of graphite anode in DIBs.
AU  - Yang,K
AU  - Jia,L
AU  - Liu,X
AU  - Wang,Z
AU  - Wang,Y
AU  - Li,Y
AU  - Chen,H
AU  - Wu,B
AU  - Yang,L
AU  - Pan,F
DO  - 10.1007/s12274-020-2623-1
EP  - 418
PY  - 2020///
SN  - 1998-0124
SP  - 412
TI  - Revealing the anion intercalation behavior and surface evolution of graphite in dual-ion batteries via in situ AFM
T2  - Nano Research
UR  - http://dx.doi.org/10.1007/s12274-020-2623-1
UR  - https://link.springer.com/article/10.1007%2Fs12274-020-2623-1
UR  - http://hdl.handle.net/10044/1/76583
VL  - 13
ER  - 

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