Journal ArticleDOI
In situ electrochemical surface modification for high-voltage LiCoO2 in lithium ion batteries
TLDR
Li et al. as discussed by the authors introduced an in situ electrochemical coating method, where the electrolyte additive of Mg salts is electrochemically decomposed to form a MgF2-based coating layer on the LiCoO2 surface.About:
This article is published in Journal of Power Sources.The article was published on 2019-06-30. It has received 28 citations till now. The article focuses on the topics: Electrolyte & Coating.read more
Citations
More filters
Journal ArticleDOI
An Overview on the Advances of LiCoO 2 Cathodes for Lithium‐Ion Batteries
Yingchun Lyu,Xia Wu,Kai Wang,Zhijie Feng,Tao Cheng,Yang Liu,Meng Wang,Riming Chen,Leimin Xu,Jingjing Zhou,Yuhao Lu,Bingkun Guo +11 more
Journal ArticleDOI
An In Situ Formed Surface Coating Layer Enabling LiCoO2 with Stable 4.6 V High-Voltage Cycle Performances
Yi Wang,Qinghua Zhang,Zhi-Chen Xue,Lufeng Yang,Junyang Wang,Fanqi Meng,Qinghao Li,Hongyi Pan,Jie-Nan Zhang,Zheng Jiang,Wanli Yang,Xiqian Yu,Lin Gu,Hong Li +13 more
Journal ArticleDOI
Lithium Metal Interface Modification for High‐Energy Batteries: Approaches and Characterization
Journal ArticleDOI
Outside‐In Nanostructure Fabricated on LiCoO2 Surface for High‐Voltage Lithium‐Ion Batteries
TL;DR: In this article, an outside-in oriented nanostructure on LiCoO2 crystals is fabricated to prevent damage of both cathodes and electrolytes, while the inner F doping promotes Li ions diffusivity and stabilize the lattice oxygen.
Journal ArticleDOI
Delayed Phase Transition and Improved Cycling/Thermal Stability by Spinel LiNi0.5Mn1.5O4 Modification for LiCoO2 Cathode at High Voltages.
TL;DR: In situ X-ray diffraction at an upper cutoff voltage of 4.75 V in combination with differential capacity curve reveals that the promoted cycling performance is ascribed to a delay of O3→H1-3→O1 phase transitions and a suppression of cobalt dissolution-induced side reactions.
References
More filters
Journal ArticleDOI
Demonstrating Oxygen Loss and Associated Structural Reorganization in the Lithium Battery Cathode Li[Ni0.2Li0.2Mn0.6]O2
A. Robert Armstrong,Michael Holzapfel,Petr Novák,Christopher S. Johnson,Sun-Ho Kang,and Michael M. Thackeray,Peter G. Bruce +6 more
TL;DR: It is demonstrated directly, by in situ differential electrochemical mass spectrometry (DEMS), that O2 is evolved from such Mn4+ -containing compounds, Li-Mn-Ni-O compounds, which can, after O loss, store 200 mAhg(-1) of charge compared with 140mAhg (-1) for LiCoO(2).
Journal ArticleDOI
Ferrocene as an internal standard for electrochemical measurements
TL;DR: In this paper, the authors proposed a universal reference electrode for nonaqueous solvents, such as the normal hydrogen electrode (NHE) or saturated calomel electrode (SCE).
Journal ArticleDOI
The cathode-electrolyte interface in the Li-ion battery
TL;DR: In this article, the same experimental techniques as used earlier to characterize the composition and properties of the so-called solid electrolyte interphase (SEI) layer formed at the graphite-anode-electrolyte interface of a Li-ion battery are used to acquire some degree of understanding of interface phenomena occurring on the cathode side of the cell, even though the validity of the SEI-layer concept is still somewhat tenuous in this “cathode” context.
Journal ArticleDOI
Screening for Superoxide Reactivity in Li-O2 Batteries: Effect on Li2O2/LiOH Crystallization
TL;DR: A straightforward chemical approach is reported that probes the outcome of the superoxide O(2)(-), thought to initiate the electrochemical processes in the cell, and shows that this serves as a good measure of electrolyte and binder stability.