Journal ArticleDOI
Atomic Resolution Structural and Chemical Imaging Revealing the Sequential Migration of Ni, Co, and Mn upon the Battery Cycling of Layered Cathode
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TLDR
This work highlights that Ni ions, though acting as the dominant redox species in many LTMO, are labile to migrate to cause lattice disordering upon battery cycling, while the Mn ions are more stable as compared with Ni and Co and can act as pillar to stabilize layered structure.Abstract:
Layered lithium transition metal oxides (LTMO) are promising candidate cathode materials for next-generation high-energy density lithium ion battery. The challenge for using this category of cathode is the capacity and voltage fading, which is believed to be associated with the layered structure disordering, a process that is initiated from the surface or solid-electrolyte interface and facilitated by transition metal (TM) reduction and oxygen vacancy formation. However, the atomic level dynamic mechanism of such a layered structure disordering is still not fully clear. In this work, utilizing atomic resolution electron energy loss spectroscopy (EELS), we map, for the first time at atomic scale, the spatial evolution of Ni, Co and Mn in a cycled LiNi1/3Mn1/3Co1/3O2 layered cathode. In combination with atomic level structural imaging, we discovered the direct correlation of TM ions migration behavior with lattice disordering, featuring the residing of TM ions in the tetrahedral site and a sequential migrat...read more
Citations
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Journal ArticleDOI
Simultaneously Dual Modification of Ni-Rich Layered Oxide Cathode for High-Energy Lithium-Ion Batteries
Huiping Yang,Hong-Hui Wu,Mingyuan Ge,Lingjun Li,Yifei Yuan,Qi Yao,Jie Chen,Lingfeng Xia,Jiangming Zheng,Zhaoyong Chen,Junfei Duan,Kim Kisslinger,Xiao Cheng Zeng,Wah-Keat Lee,Qiaobao Zhang,Jun Lu +15 more
TL;DR: In this article, a dual-modification strategy of synchronous synthesis and in situ modification of LiNi0.8Co0.1Mn 0.1O2 cathodes was proposed to solve the problem of fast capacity drop and voltage fading due to the interfacial instability and bulk structural degradation of the cathodes during battery operation.
Journal ArticleDOI
Electrode Degradation in Lithium-Ion Batteries.
Joshua P. Pender,Gaurav Jha,Duck Hyun Youn,Joshua M. Ziegler,Ilektra Andoni,Eric J Choi,Adam Heller,Bruce Dunn,Paul S. Weiss,Reginald M. Penner,C. Buddie Mullins +10 more
TL;DR: This Review highlights the developments of electrode materials and characterization tools for rechargeable lithium-ion batteries, with a focus on the structural and electrochemical degradation mechanisms that plague these systems.
Journal ArticleDOI
Reviving lithium cobalt oxide-based lithium secondary batteries-toward a higher energy density
TL;DR: This review summarizes the key challenges of synthesizing L CO-based LBs with a higher energy density from the perspectives of structure and interface stability, and gives an account of effective modification strategies in view of the electrodes, liquid electrolytes, binders, separators, solid electrolytes and LCO-based full cells.
Journal ArticleDOI
Building ultraconformal protective layers on both secondary and primary particles of layered lithium transition metal oxide cathodes
Gui-Liang Xu,Qiang Liu,Qiang Liu,Kenneth K. S. Lau,Yuzi Liu,Xiang Liu,Xiang Liu,Han Gao,Xinwei Zhou,Xinwei Zhou,Minghao Zhuang,Minghao Zhuang,Yang Ren,Jiadong Li,Minhua Shao,Minggao Ouyang,Feng Pan,Zonghai Chen,Khalil Amine,Khalil Amine,Guohua Chen +20 more
TL;DR: In this paper, an ultraconformal poly(3,4-ethylenedioxythiophene) skin was used to conformally coat both the primary and secondary particles of these oxides.
Journal ArticleDOI
Injection of oxygen vacancies in the bulk lattice of layered cathodes
Pengfei Yan,Jianming Zheng,Zhen-Kun Tang,Zhen-Kun Tang,Arun Devaraj,Guoying Chen,Khalil Amine,Ji-Guang Zhang,Li-Min Liu,Chongmin Wang +9 more
TL;DR: A coupled redox dynamic that needs to be taken into account when designing high-capacity layered cathode materials for high-voltage lithium-ion batteries is unveiled.
References
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Journal ArticleDOI
Reversible anionic redox chemistry in high-capacity layered-oxide electrodes
Mariyappan Sathiya,Gwenaëlle Rousse,Kannadka Ramesha,C.P. Laisa,Hervé Vezin,Moulay Tahar Sougrati,Moulay Tahar Sougrati,Marie-Liesse Doublet,Dominique Foix,Danielle Gonbeau,Danielle Gonbeau,Wesley Walker,Annigere S. Prakash,M. Ben Hassine,M. Ben Hassine,Loic Dupont,Loic Dupont,Jean-Marie Tarascon,Jean-Marie Tarascon +18 more
TL;DR: In this article, the reactivity of a class of high-capacity oxides with a single redox cation has been investigated and it has been shown that these oxides exhibit sustainable reversible capacities as high as 230 mAh/g−1 and good cycling behavior with no signs of voltage decay.
Journal ArticleDOI
Surface reconstruction and chemical evolution of stoichiometric layered cathode materials for lithium-ion batteries
Feng Lin,Isaac M. Markus,Isaac M. Markus,Dennis Nordlund,Tsu-Chien Weng,Mark Asta,Huolin L. Xin,Marca M. Doeff +7 more
TL;DR: It was found that the surface reconstruction exhibits a strong anisotropic characteristic, which predominantly occurs along lithium diffusion channels, and the surface reaction layer is composed of lithium fluoride embedded in a complex organic matrix.
Journal ArticleDOI
Nickel-Rich and Lithium-Rich Layered Oxide Cathodes: Progress and Perspectives
TL;DR: Li-rich layered oxides have attracted much research interest as cathodes for Li-ion batteries due to their low cost and higher discharge capacities compared to those of LiCoO2 and LiMn2O4 as mentioned in this paper.
Journal ArticleDOI
Synthesis, Structure, and Electrochemical Behavior of Li [ Ni x Li1 / 3 − 2x / 3Mn2 / 3 − x / 3 ] O 2
TL;DR: Li[Ni x Li 1/3 2x/3 Mn 2/3 3/3 ]O 2 for 0 < x ≤ 1/2 is presented in this paper.
Journal ArticleDOI
Identifying surface structural changes in layered Li-excess nickel manganese oxides in high voltage lithium ion batteries: A joint experimental and theoretical study
TL;DR: In this article, a detailed lithium de-intercalation mechanism was proposed for high voltage high energy density cathode materials, which showed clear evidence of a new spinel-like solid phase formed on the surface of the electrode materials after high-voltage cycling.