scholarly journals Controlled Dy-doping to nickel-rich cathode materials in high temperature aerosol synthesis

2020 ◽  
Author(s):  
Chao Yan ◽  
Xiaofang Yang ◽  
Hao Zhao ◽  
Hongtao Zhong ◽  
Guoming Ma ◽  
...  
Keyword(s):  
High Temperature ◽  
Cathode Materials ◽  
Aerosol Synthesis ◽  
Dy Doping

Preparation of Regenerated Cathode Material Lithium Nickel Cobalt Oxide LiNi0.7Co0.3O2 Form Spent Lithium-Ion Battery

2019 ◽  
Vol 944 ◽  
pp. 1179-1186 ◽  
Author(s):  
Yue Hua Wang ◽  
Li Wen Ma ◽  
Yun He Zhang ◽  
Zhao Jie Huang ◽  
Xiao Li Xi
Keyword(s):  
High Temperature ◽  
Cathode Material ◽  
Lithium Ion Battery ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Lithium Hydroxide ◽  
Nickel Cobalt ◽  
Aluminum Ions ◽  
Nickel Cobalt Oxide ◽  
Lithium Nickel Cobalt Oxide

With the development of new energy vehicles, urgent issues have attracted considerable attention. Some power batteries have entered the scrapping period, with the imperative recycling of used power batteries. Some studies have predicted that by 2020, the amount of power lithium battery scrap will reach 32.2 GWh, corresponding to ~500,000 tons, and by 2023, the scrap will reach 101 GWh, corresponding to ~1.16 million tons. In this study, nickel-cobalt-lithium LiNi0.7Co0.3O2cathode materials are regenerated from spent lithium-ion battery cathode materials as the raw material, which not only aids in the reduction of pressure on the environment but also leads to the recycling of resources. First, extraction is employed using extracting agent p204 to remove aluminum ions from an acid leaching solution. Extraction conditions for aluminum ions are: include a phase ratio of 1:2,a pH of 3, an extractant concentration of 30%, and a saponification rate of 70%.Next, the precursor was prepared by co-precipitation using sodium hydroxide and ammonia water as the precipitant and complexion agents, respectively; hence, the cathode material can be uniformly mixed at the atomic level. The precursor and lithium hydroxide were subjected to calcination at high temperature using a high-temperature solid-phase method. The Calcination conditions include an air atmosphere ; a calcination temperature of 800° °C ; a calcination time of 15 h, an n (precursor): n (lithium hydroxide) ratio of 1:1.1.The Thermogravimetric analysis revealed that the synthesis temperature should not exceed 850°C. X-ray diffraction analysis, scanning electron microscopy, and energy spectrum analysis of the cathode material revealed a composition comprising Li, Ni, and Co oxides. After analysis, the material obtained is lithium nickel-cobalt-oxide, LiNi0.7Co0.3O2, which is a positive electrode material with good crystallinity and a regular layered structure.

Recycling Process for Spent Cathode Materials of LiFePO4 Batteries

2019 ◽  
Vol 943 ◽  
pp. 141-148 ◽  
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.

A facile approach to derive binder protective film on high voltage spinel cathode materials against high temperature degradation

2015 ◽  
Vol 355 ◽  
pp. 1272-1278 ◽  
Author(s):  
Wei-Yu Chou ◽  
Yi-Chun Jin ◽  
Jenq-Gong Duh ◽  
Cheng-Zhang Lu ◽  
Shih-Chieh Liao
Keyword(s):  
High Temperature ◽  
High Voltage ◽  
Cathode Materials ◽  
Protective Film ◽  
Spinel Cathode

scholarly journals Lamellar mesoporous carbon derived from bagasse for the cathode materials of lithium–sulfur batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (22) ◽  
pp. 13595-13603 ◽  
Author(s):  
Xiqing Yuan ◽  
Bingchuan Liu ◽  
Jingyi Xu ◽  
Xiaorong Yang ◽  
Kemal Zeinu ◽  
...  
Keyword(s):  
High Temperature ◽  
Cathode Materials ◽  
Mesoporous Carbon ◽  
Scale Up ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Mesoporous lamellar carbon was produced by direct high temperature carbonization of bagasse, a novel process designed with affordable cost and ease of production for scale-up manufacturing of Li–S batteries.

Effects of adhesives on the electrochemical performance of monodisperse LiMn0.8Fe0.2PO4/C microspheres as cathode materials for high power lithium-ion batteries

2017 ◽  
Vol 5 (17) ◽  
pp. 7952-7960 ◽  
Author(s):  
Jianlong Li ◽  
Mingwu Xiang ◽  
Yan Wang ◽  
Jinhua Wu ◽  
Hang Zhao ◽  
...  
Keyword(s):  
High Temperature ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Spray Drying ◽  
High Power ◽  
Cathode Materials ◽  
Large Scale ◽  
Lithium Ion ◽  
Co Precipitation

A facile co-precipitation approach combined with spray-drying and high-temperature calcinations was developed to synthesize LiMn0.8Fe0.2PO4/C microspheres on a large scale.

Thermal structural stability of a multi-component olivine electrode for lithium ion batteries

CrystEngComm ◽  
2016 ◽  
Vol 18 (39) ◽  
pp. 7463-7470 ◽  
Author(s):  
Kyu-Young Park ◽  
Hyungsub Kim ◽  
Seongsu Lee ◽  
Jongsoon Kim ◽  
Jihyun Hong ◽  
...  
Keyword(s):  
High Temperature ◽  
Neutron Diffraction ◽  
Lithium Ion Batteries ◽  
Structural Stability ◽  
Cathode Materials ◽  
Structural Evolution ◽  
Lithium Ion ◽  
X Ray Diffraction ◽  
X Ray

In this paper, the structural evolution of Li(Mn1/3Fe1/3Co1/3)PO4, which is a promising multi-component olivine cathode materials, is investigated using combined in situ high-temperature X-ray diffraction and flux neutron diffraction analyses at various states of charge.

scholarly journals Flame Aerosol Synthesis and Electrochemical Characterization of Ni-Rich Layered Cathode Materials for Li-Ion Batteries

2019 ◽  
Vol 2 (2) ◽  
pp. 1319-1329 ◽  
Author(s):  
Christopher Abram ◽  
Jingning Shan ◽  
Xiaofang Yang ◽  
Chao Yan ◽  
Daniel Steingart ◽  
...  
Keyword(s):  
Cathode Materials ◽  
Electrochemical Characterization ◽  
Li Ion Batteries ◽  
Aerosol Synthesis ◽  
Layered Cathode Materials ◽  
Li Ion
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