Influence of the pH of li-rich Li1.2Mn0.54Ni0.13Co0.13O2on the electrochemical performance by sol–gel method

Song, Changkun; Feng, Wangjun; Su, Wenxiao; Chen, Linjing; Li, Miaomiao

doi:10.1080/10584587.2019.1592628

Cited by 4 publications

(2 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Doping and coating modified materials are related to the synthesis method. Lithium-rich manganese-based cathode materials can be synthesized with methods of high-temperature solid-state [29] , coprecipitation [30] , sol-gel [31] , hydrothermal [32] . The synthesis conditions also have an important impact on the structure and electrochemical properties of lithium-rich manganese-based materials.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, it has the advantages of simple operation, low sintering temperature, small and uniform particle size of products, large specific surface area and so on. In view of this, Song et al [31] synthesized Li 1.2 Mn 0.54 Ni 0.13 Co 0.13 -O 2 by sol-gel method. After 100 cycles at 400 mA•g −1 current density, it still has a specific capacity of 133.7 mAh•g −1 , and the capacity retention rate is 84.14%.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Aluminum doping and lithium tungstate surface coating double effect to improve the cycle stability of lithium-rich manganese-based cathode materials

Ren

Zhao

et al. 2022

ACE

View full text Add to dashboard Cite

Al doped lithium-rich manganese-based Li1.2Mn0.54−xAlxNi0.13Co0.13O2 (x = 0, 0.03) cathode materials for lithium-ion batteries were synthesized with sol-gel method, and then Li2WO4 coating was prepared by one-step liquid phase method. The effects of Al doping and Li2WO4 coating on the electrochemical properties of lithium-rich manganese-based cathode materials were systematically studied. The results show that Al doping significantly improves the cycle stability of lithium-rich manganese-based cathode material, and the coating Li2WO4 significantly improves its magnification performance and the voltage attenuation of discharge plateau. The coating amount of Li2WO4 is 5%, and the specific capacity of Li1.2Mn0.51Al0.03Ni0.13Co0.13O2 cathode material is still up to about 110 mAh·g−1 in the charge and discharge voltage range of 2.0-4.8 V and the current density of 1,000 mA·g−1. At the same time, the capacity retention rate of 300 cycles at the current density of 100 mA·g−1 is 78%, and the voltage attenuation of the discharge plateau during the cycle is also significantly reduced. This work provides a new idea for solving the cycle stability and platform voltage attenuation of lithium-ion battery lithium-rich manganese-based cathode materials.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%