A novel surface-heterostructured [email protected]−σ cathode material for Li-ion batteries with improved initial irreversible capacity loss

2018 ◽  
Vol 6 (28) ◽  
pp. 13883-13893 ◽  
Author(s):  
Yanying Liu ◽  
Zhe Yang ◽  
Jianling Li ◽  
Bangbang Niu ◽  
Kai Yang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Chemical Treatment ◽  
Surface Coating ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Irreversible Capacity ◽  
Capacity Loss ◽  
Layered Cathode Materials ◽  
Li Ion

The modification of lithium-rich layered cathode materials has been widely studied by surface coating, doping and chemical treatment for lithium-ion batteries.

Capacity Loss Estimation For Li-Ion Batteries Based On A Semi-Empirical Model

2021 ◽  
Author(s):  
Mohammed Rabah ◽  
Eero Immonen ◽  
Sajad Shahsavari ◽  
Mohammad-Hashem Haghbayan ◽  
Kirill Murashko ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Empirical Model ◽  
Lithium Ion ◽  
Average Error ◽  
Li Ion Batteries ◽  
Capacity Loss ◽  
Capacity Degradation ◽  
Battery Capacity ◽  
Li Ion ◽  
Semi Empirical

Understanding battery capacity degradation is instrumental for designing modern electric vehicles. In this paper, a Semi-Empirical Model for predicting the Capacity Loss of Lithium-ion batteries during Cycling and Calendar Aging is developed. In order to redict the Capacity Loss with a high accuracy, battery operation data from different test conditions and different Lithium-ion batteries chemistries were obtained from literature for parameter optimization (fitting). The obtained models were then compared to experimental data for validation. Our results show that the average error between the estimated Capacity Loss and measured Capacity Loss is less than 1.5% during Cycling Aging, and less than 2% during Calendar Aging. An electric mining dumper, with simulated duty cycle data, is considered as an application example.

Bifunctional Surface Coating of LiNbO3 on High-Ni Layered Cathode Materials for Lithium-Ion Batteries

2020 ◽  
Vol 12 (31) ◽  
pp. 35098-35104
Author(s):  
Jong Hwa Kim ◽  
Hyeongwoo Kim ◽  
Wonchang Choi ◽  
Min-Sik Park
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Surface Coating ◽  
Lithium Ion ◽  
Layered Cathode Materials

Precise surface control of cathode materials for stable lithium-ion batteries

2022 ◽  
Author(s):  
Si-Qi Lu ◽  
Si-Jie Guo ◽  
Mu-Yao Qi ◽  
Jin-Yang Li ◽  
An-Min Cao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Materials Design ◽  
Li Ion Batteries ◽  
Stabilization Mechanism ◽  
Surface Control ◽  
Li Ion

Precise surface control of cathode materials for stable Li-ion batteries: materials design, kinetics control and stabilization mechanism.

Designed synthesis of LiFe0.2Co0.8O2 nanomeshes to greatly improve the positive performance in lithium-ion batteries

2015 ◽  
Vol 3 (12) ◽  
pp. 6671-6678 ◽  
Author(s):  
Li Liu ◽  
Jida Chen ◽  
Yuanjuan Bai ◽  
Ling Fang ◽  
Huijuan Zhang ◽  
...  
Keyword(s):  
Porous Structure ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Positive Performance ◽  
Li Ion ◽  
Designed Synthesis

We report the synthesis of novel LiFe0.2Co0.8O2 2D nanomeshes which demonstrate enhanced performance as cathode materials for Li ion batteries, resulting from the porous structure and the introduction of conductive Fe.

scholarly journals An overview of bio-interface electrolyte and Li2FePO4F as cathode in Li-ion batteries

2019 ◽  
Vol 9 (2) ◽  
pp. 3866-3873
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Sol Gel ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
View Point ◽  
Iron Nickel ◽  
Li Ion ◽  
Charge Discharge

Composites of {[(1-x-y) LiFe0.333Ni0.333 Co0.333] PO4}, xLi2FePO4F and yLiCoPO4system were synthesized using the sol-gel method. Stoichiometric weights of the mole-fraction of LiOH, FeCl2·4H2O and H3PO4, LiCl, Ni(NO3)2⋅6H2O, Co(Ac)2⋅4H2O, as starting materials of lithium, Iron, Nickel , and Cobalt, in 7 samples of the system, respectively. We exhibited Li1.167 Ni0.222 Co0.389 Fe0.388 PO4 is the best composition for cathode material in this study. Obviously, the used weight of cobalt in these samples is lower compared with LiCoO2 that is an advantage in view point of cost in this study. Charge-discharge haracteristics of the mentioned cathode materials were investigated by performing cycle tests in the range of 2.4–3.8 V (versus Li/Li+). Our results confirmed, although these kind systems can help for removing the disadvantage of cobalt which mainly is its cost and toxic, the performance of these kind systems are similar to the commercial cathode materials in Lithium Ion batteries (LIBs).

Effects of V2O5 nanowires on the performances of Li2MnSiO4 as a cathode material for lithium-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (62) ◽  
pp. 50316-50323 ◽  
Author(s):  
Hai Zhu ◽  
Xiaoling Ma ◽  
Ling Zan ◽  
Youxiang Zhang
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Li Ion

Effects of V2O5 nanowires on the performances of Li2MnSiO4 as cathode materials for Li-ion batteries were tested and analyzed.

scholarly journals A Comparative Review of Metal Oxide Surface Coatings on Three Families of Cathode Materials for Lithium Ion Batteries

Coatings ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 744
Author(s):  
Thabang Ronny Somo ◽  
Tumiso Eminence Mabokela ◽  
Daniel Malesela Teffu ◽  
Tshepo Kgokane Sekgobela ◽  
Brian Ramogayana ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Metal Ion ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Oxide Coatings ◽  
Capacity Fading ◽  
Li Ion ◽  
Metal Oxide Coatings

In the recent years, lithium-ion batteries have prevailed and dominated as the primary power sources for mobile electronic applications. Equally, their use in electric resources of transportation and other high-level applications is hindered to some certain extent. As a result, innovative fabrication of lithium-ion batteries based on best performing cathode materials should be developed as electrochemical performances of batteries depends largely on the electrode materials. Elemental doping and coating of cathode materials as a way of upgrading Li-ion batteries have gained interest and have modified most of the commonly used cathode materials. This has resulted in enhanced penetration of Li-ions, ionic mobility, electric conductivity and cyclability, with lesser capacity fading compared to traditional parent materials. The current paper reviews the role and effect of metal oxides as coatings for improvement of cathode materials in Li-ion batteries. For layered cathode materials, a clear evaluation of how metal oxide coatings sweep of metal ion dissolution, phase transitions and hydrofluoric acid attacks is detailed. Whereas the effective ways in which metal oxides suppress metal ion dissolution and capacity fading related to spinel cathode materials are explained. Lastly, challenges faced by olivine-type cathode materials, namely; low electronic conductivity and diffusion coefficient of Li+ ion, are discussed and recent findings on how metal oxide coatings could curb such limitations are outlined.

scholarly journals Improved electrochemical performance of 5 V spinel LiNi0.5Mn1.5O4 by La2O3 surface coating for Li-ion batteries

2018 ◽  
Vol 175 ◽  
pp. 01030 ◽  
Author(s):  
Aijia Wei ◽  
Wen Li ◽  
Lihui Zhang ◽  
Zhenfa Liu
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Surface Coating ◽  
Coating Layer ◽  
Lattice Structure ◽  
Lithium Ion ◽  
Electrode Polarization ◽  
Li Ion Batteries ◽  
Rate Capacity ◽  
Li Ion

LiNi0.5Mn1.5O4 coated with 1.5 wt.% La2O3 was prepared and investigated as cathode materials for lithium ion batteries. The samples was characterized by XRD, SEM and EDX. After the 1.5 wt.% La2O3 coating, the lattice structure of LiNi0.5Mn1.5O4 is not destroyed and a La2O3 coating layer has formed on the surface of LiNi0.5Mn1.5O4 particles. The 1.5 wt.% La2O3-coated LiNi0.5Mn1.5O4 exhibits a higher rate capacity, with discharge capacity between 3.5 and 5 V of 131.9, 127.1, 126.5, 120.7, 114.1 and 101.5 mAh g-1 at rates of 0.2, 0.5, 1, 2, 3 and 5 C (1 C = 140 mAh g-1), respectively. The results indicate that the La2O3 coating could reduce the electrode polarization and enhance the rate capacities.

Facile synthesis of porous Li-rich layered Li[Li0.2Mn0.534Ni0.133Co0.133]O2 as high-performance cathode materials for Li-ion batteries

RSC Advances ◽  
2015 ◽  
Vol 5 (39) ◽  
pp. 30507-30513 ◽  
Author(s):  
Chenwei Cao ◽  
Liujiang Xi ◽  
Kwan Lan Leung ◽  
Man Wang ◽  
Ying Liu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Performance ◽  
Lithium Ion ◽  
Li Ion Batteries ◽  
Facile Synthesis ◽  
Li Ion

Porous Li-rich layered Li[Li0.2Mn0.534Ni0.133Co0.133]O2 was successfully prepared by a facile polymer-thermolysis method and exhibited superior electrochemical performance as cathode materials for lithium ion batteries.

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