One-step synthesis and effect of heat-treatment on the structure and electrochemical properties of LiNi0.5Mn1.5O4 cathode material for lithium-ion batteries

2014 ◽  
Vol 133 ◽  
pp. 515-521 ◽  
Author(s):  
Jian-Wu Wen ◽  
Da-Wei Zhang ◽  
Yong Zang ◽  
Xin Sun ◽  
Bin Cheng ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
One Step

Preparation and electrochemical properties of cationic substitution Li2Mn0.98M0.02SiO4 (M = Mg, Ni, Cr) as cathode material for lithium-ion batteries

Ionics ◽  
2020 ◽  
Vol 26 (8) ◽  
pp. 3769-3775 ◽  
Author(s):  
Luoxuan Wang ◽  
Yang Zhan ◽  
Shao-hua Luo ◽  
Yafeng Wang ◽  
Si Li ◽  
...  
Keyword(s):  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Cationic Substitution

scholarly journals Synthesis and Electrochemical Performance of Ni-Doped VO2(B) as a Cathode Material for Lithium Ion Batteries

Batteries ◽  
2019 ◽  
Vol 5 (2) ◽  
pp. 46
Author(s):  
Qian Yang ◽  
Zhengguang Zou ◽  
Xingyu Wu ◽  
Shengyu Li ◽  
Yanjiao Zhang
Keyword(s):  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Doping Amount ◽  
Lithium Storage ◽  
Ni Doping ◽  
Storage Performance ◽  
Lithium Diffusion Coefficient ◽  
Specific Discharge ◽  
One Step

Ni-doped VO2(B) samples (NixVO2(B)) were fabricated by a facile one-step hydrothermal method. When evaluated as a cathode material for lithium ion batteries (LIBs), these Ni-doped VO2(B) exhibited improved lithium storage performance as compared to the pure VO2(B). In particular, when the doping amount is 3%, NixVO2(B) showed the highest lithium storage capacity, best cycling stability, smallest electrochemical reaction resistance, and largest lithium diffusion coefficient. For example, after 100 cycles at a current density of 32.4 mA/g, NixVO2(B) delivered a high specific discharge capacity of 163.0 mAh/g, much higher than that of the pure VO2(B) sample (95.5 mAh/g). Therefore, Ni doping is an effective strategy for enhancing the lithium storage performance of VO2(B).

VCuxOy Thin Film by Magnetron Sputtering as Cathode Material for Thin Film Lithium-Ion Microbatteries

2015 ◽  
Vol 645-646 ◽  
pp. 1145-1149
Author(s):  
Jie Lin ◽  
Jian Lai Guo ◽  
Chang Liu ◽  
Hang Guo
Keyword(s):  
Thin Film ◽  
Magnetron Sputtering ◽  
Cathode Material ◽  
Electrochemical Properties ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Cycle Performance ◽  
Electrochemical Tests ◽  
Effect Of Doping

A Cu doped V2O5film for lithium-ion batteries is prepared by magnetron sputtered using a vanadium target. Coppers are doped in varying proportions to investigate the effect of doping on the electrochemical properties. In comparison, the surface of doped samples is smooth and uniform. And the results of electrochemical tests indicate that the proper doped films (V: Cu=8: 1 by area) exhibit better cycle performance, wider voltage plateaus and higher capacity than other samples.

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

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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