Efficient Reformulation of Solid Phase Diffusion in Electrochemical-Mechanical Coupled Models for Lithium-Ion Batteries: Effect of Intercalation Induced Stresses

Abstract The high-nickel cathode material of LiNi0.8Co0.15Al0.05O2 (LNCA) has a prospective application for lithium-ion batteries due to the high capacity and low cost. However, the side reaction between the electrolyte and the electrode seriously affects the cycling stability of lithium-ion batteries. In this work, Ni2+ preoxidation and the optimization of calcination temperature were carried out to reduce the cation mixing of LNCA, and solid-phase Al-doping improved the uniformity of element distribution and the orderliness of the layered structure. In addition, the surface of LNCA was homogeneously modified with ZnO coating by a facile wet-chemical route. Compared to the pristine LNCA, the optimized ZnO-coated LNCA showed excellent electrochemical performance with the first discharge-specific capacity of 187.5 mA h g−1, and the capacity retention of 91.3% at 0.2C after 100 cycles. The experiment demonstrated that the improved electrochemical performance of ZnO-coated LNCA is assigned to the surface coating of ZnO which protects LNCA from being corroded by the electrolyte during cycling.

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Optimal Charging Profiles with Minimal Intercalation-Induced Stresses for Lithium-Ion Batteries Using Reformulated Pseudo 2-Dimensional Models

Journal of The Electrochemical Society ◽

10.1149/2.0211411jes ◽

2014 ◽

Vol 161 (11) ◽

pp. F3144-F3155 ◽

Cited By ~ 33

Author(s):

Bharatkumar Suthar ◽

Paul W. C. Northrop ◽

Richard D. Braatz ◽

Venkat R. Subramanian

Keyword(s):

Lithium Ion Batteries ◽

Lithium Ion ◽

Induced Stresses ◽

Dimensional Models

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Recycling Process for Spent Cathode Materials of LiFePO4 Batteries

Materials Science Forum ◽

10.4028/www.scientific.net/msf.943.141 ◽

2019 ◽

Vol 943 ◽

pp. 141-148 ◽

Cited By ~ 3

Author(s):

Xiao Tong Jiang ◽

Pan Wang ◽

Long Hui Li ◽

Jia Yu ◽

Yu Xin Yin ◽

...

Keyword(s):

High Temperature ◽

Lithium Ion Batteries ◽

Cathode Materials ◽

Solid Phase ◽

Specific Capacity ◽

Lithium Ion ◽

Carbon Layer ◽

Lithium Content ◽

Recycling Process ◽

Gradual Loss

The cathode materials of LiFePO4 batteries decreases due to the gradual loss of lithium content during use. In this paper, the spent cathode materials were recycled with a carbon layer coated. The samples were prepared by a high temperature impurity removal procession and a solid phase repairing method. The LiFePO4 material obtained by the regeneration process has a discharge specific capacity of 105.4 mAh/g at 0.1 C after 10 cycles, and keeps it a considerable retention of 73.1 mAh/g at 1 C. This work provides a new routine in reusing lithium ion batteries.

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Physics-based fractional-order model with simplified solid phase diffusion of lithium-ion battery

Journal of Energy Storage ◽

10.1016/j.est.2020.101404 ◽

2020 ◽

Vol 30 ◽

pp. 101404 ◽

Cited By ~ 1

Author(s):

Dongxu Guo ◽

Geng Yang ◽

Xuning Feng ◽

Xuebing Han ◽

Languang Lu ◽

...

Keyword(s):

Lithium Ion Battery ◽

Fractional Order ◽

Solid Phase ◽

Lithium Ion ◽

Order Model ◽

Phase Diffusion ◽

Fractional Order Model

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Fixing of highly soluble Br2/Br− in porous carbon as a cathode material for rechargeable lithium ion batteries

Journal of Materials Chemistry A ◽

10.1039/c4ta05569a ◽

2015 ◽

Vol 3 (5) ◽

pp. 1879-1883 ◽

Cited By ~ 7

Author(s):

Y. L. Wang ◽

X. Wang ◽

L. Y. Tian ◽

Y. Y. Sun ◽

Shi-hai Ye

Keyword(s):

Carbon Black ◽

Lithium Ion Batteries ◽

Porous Carbon ◽

Solid Phase ◽

Rate Capability ◽

Lithium Ion ◽

High Rate ◽

High Rate Capability ◽

Active Materials ◽

Solid Cathode

LiBr, as a representative of high soluble electrochemical active materials, is fixed in nanopores of conductive carbon black (CCB). The Li/LiBr–CCB battery presents excellent high-rate capability for avoiding the slow solid-phase diffusion of Li ions in traditional solid cathode materials.

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Effects of Morphological Collapse of Sphere Secondary Particles on Electrochemical Properties of a LiNi0.83Co0.11Mn0.06O2 Cathode Material for Lithium-Ion Batteries

Science of Advanced Materials ◽

10.1166/sam.2020.3795 ◽

2020 ◽

Vol 12 (9) ◽

pp. 1278-1282

Author(s):

Jun-Seok Park ◽

Un-Gi Han ◽

Gyu-Bong Cho ◽

Hyo-Jun Ahn ◽

Ki-Won Kim ◽

...

Keyword(s):

Cathode Material ◽

Electrochemical Properties ◽

Lithium Ion Batteries ◽

Solid Phase ◽

Lithium Ion ◽

Cycle Performance ◽

Phase Method ◽

Electrochemical Characteristics ◽

Secondary Particles ◽

Tap Density

Li[NixCoyMnz]O2 (LiNCM) is one of the candidate cathode material that can replace the currently commercialized LiCoO2 (LCO) cathode material for lithium-ion batteries (LiBs). The morphological feature having primary particle and secondary sphere particle could affect structural stability, tap density and electrochemical performance of LiNCM. In this work, two LiNCM particles without or with the morphological collapse of the secondary particles were prepared by using a co-precipitation-assisted, solid-phase method and ball milling, and its morphological, structural and electrochemical characteristics were evaluated. The results of XRD, and FESEM demonstrated that the as-prepared two LiNCMs have a typical α-NaFeO2 layered structure and the two morphological features of secondary particles needed in this study. The results of electrochemical properties indicated that the LiNCM electrode without collapsed secondary particles have a good stability in cycle performance compared to that with collapse of secondary particles at 0.5, 1.0 and 2 C-rate. The capacity retention of without and with collapsed NCM was 55.8% and 27.3% after 200 cycles at 1 C-rate, respectively.

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