Synthesis and electrochemical properties of low-temperature synthesized Li2MnO3/MWCNT/super P as a high capacity cathode material for lithium ion batteries

2018 ◽  
Author(s):  
Rakesh Saroha ◽  
Amrish K. Panwar ◽  
Abhishek Bhardwaj
Keyword(s):  
Low Temperature ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion

Industrialization of tailoring spherical cathode material towards high-capacity, cycling-stable and superior low temperature performance for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (100) ◽  
pp. 97818-97824 ◽  
Author(s):  
Zhonghui Sun ◽  
Liansheng Jiao ◽  
Yingying Fan ◽  
Fenghua Li ◽  
Dandan Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Low Temperature ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion ◽  
Precipitation Method ◽  
Temperature Performance ◽  
Different Types ◽  
Co Precipitation

Three different types of spherical cathodes (Li[Ni0.6Co0.2Mn0.2]O2) were synthesized via hydroxide co-precipitation method coupled with high temperature lithiation process.

The Effect of Si Doping or/and Ti Coating on the Electrochemical Properties of Ni-Rich NCA (LiNi0.8Co0.15Al0.05O2) Cathode Material for Lithium-Ion Batteries

2020 ◽  
Vol 12 (10) ◽  
pp. 1581-1585
Author(s):  
Tae-Hyun Ha ◽  
Jun-Seok Park ◽  
Gyu-Bong Cho ◽  
Hyo-Jun Ahn ◽  
Ki-Won Kim ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Physical Contact ◽  
Precipitation Method ◽  
Si Doping

LiNixCoyAlzO2 (NCA) is one of the most promising candidates of cathode material for lithium ion batteries because of its high capacity, energy density, and low cost. However, Ni-rich NCA cathode materials suffer from side reaction (formation of lithium carbonate and hydrogen fluoride attack) between electrolyte and surface of electrode and irreversible phase transition leading to capacity fading and thermal instability. These problems could be improved by coating and doping of transition metal elements. Si doping contributes to stabilization of the unstable R-3m structure, and Ti coating is capable of prohibiting the direct physical contact of electrode with electrolyte. In this work, LiNi0.8Co0.15Al0.05O2 (NCA) cathode materials coated or/and doped by Ti and Si elements were fabricated by co-precipitation method using the ball-milling. The crystal structure, morphology and electrochemical properties are investigated using X-ray diffraction (XRD), scanning electron microscopy (FE-SEM), transmission electron microscopy (FE-TEM), and WBCS3000 (WonA tech Co., Ltd.). The EIS and charge/discharge results of Si doped and Ti coated NCA exhibited the lowest resistance value (147.19 Ω) and capacity retentions of 88% after 100 cycles at 0.5 C.

Electrochemical Properties of Li-Riched Li[Li0.2Co0.4Mn 0.4]O2 Cathode Material for Lithium Ion Batteries

2011 ◽  
Vol 347-353 ◽  
pp. 3658-3661
Author(s):  
Zhe Li ◽  
Kai Zhu ◽  
Yu Hui Wang ◽  
Gang Li ◽  
Gang Chen ◽  
...  
Keyword(s):  
Solid Solution ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
High Capacity ◽  
Lithium Ion ◽  
Structural Rearrangement ◽  
X Ray Diffraction ◽  
X Ray

The Li[Li0.2Co0.4Mn0.4]O2 cathode material was prepared by a sol-gel method. The X-ray diffraction (XRD) spectroscopic showed that the material was a solid solution of LiCoO2 and Li2MnO3. The material showed a reversible discharge capacity of 155.6 mAhg−1 in the voltage window of 2.0-4.3 V after percharge to 4.6 V. While the material cycled in the same voltage window without precharge could only deliver capacity of 77.6 mAhg−1. This high capacity was attributed to the loss of oxygen and structural rearrangement in the precharge process.

Regeneration of high-capacity Ni-rich layered cathode material from spent lithium-ion batteries

2021 ◽  
pp. 103512
Author(s):  
Zaowen Zhao ◽  
Bao Zhang ◽  
Jingtian Zou ◽  
Pengfei Li ◽  
Zihang Liu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
High Capacity ◽  
Lithium Ion
Sign in / Sign up

Export Citation Format

Share Document