A facile method of improving the high rate cycling performance of LiNi 1/3 Co 1/3 Mn 1/3 O 2 cathode material

2016 ◽  
Vol 686 ◽  
pp. 267-272 ◽  
Author(s):  
Qin Wang ◽  
Na Tian ◽  
Ke Xu ◽  
Liyuan Han ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Cycling Performance ◽  
High Rate

Single crystalline VO2 nanosheets: A cathode material for sodium-ion batteries with high rate cycling performance

2014 ◽  
Vol 250 ◽  
pp. 181-187 ◽  
Author(s):  
Wei Wang ◽  
Bo Jiang ◽  
Liwen Hu ◽  
Zheshuai Lin ◽  
Jungang Hou ◽  
...  
Keyword(s):  
Cathode Material ◽  
Cycling Performance ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
Single Crystalline

Facile synthesis and performances of nanosized Li2TiO3-based shell encapsulated LiMn1/3Ni1/3Co1/3O2 microspheres

2014 ◽  
Vol 2 (22) ◽  
pp. 8362-8368 ◽  
Author(s):  
Xiukang Yang ◽  
Ruizhi Yu ◽  
Long Ge ◽  
Di Wang ◽  
Qinglan Zhao ◽  
...  
Keyword(s):  
Cathode Material ◽  
Rate Capability ◽  
Cycling Performance ◽  
High Rate ◽  
High Rate Capability ◽  
Facile Synthesis

LiMn1/3Ni1/3Co1/3O2 microspheres covered with a nanosized Li2TiO3-based shell shows high rate capability and excellent cycling performance as a cathode material.

Recent Progress in Capacity Enhancement of LiFePO4 Cathode for Li-Ion Batteries

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Zishan Ahsan ◽  
Bo Ding ◽  
Zhenfei Cai ◽  
Cuie Wen ◽  
Weidong Yang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Cathode Material ◽  
Lithium Iron Phosphate ◽  
Specific Capacity ◽  
Iron Phosphate ◽  
Cycling Performance ◽  
High Rate ◽  
Particle Size Reduction ◽  
Capacity Enhancement ◽  
Li Ion

Abstract LiFePO4 (lithium iron phosphate (LFP)) is a promising cathode material due to its environmental friendliness, high cycling performance, and safety characteristics. On the basis of these advantages, many efforts have been devoted to increasing specific capacity and high-rate capacity to satisfy the requirement for next-generation batteries with higher energy density. However, the improvement of LFP capacity is mainly affected by dynamic factors such as low Li-ion diffusion coefficient and poor electrical conductivity. The electrical conductivity and the diffusion of lithium ions can be enhanced by using novel strategies such as surface modification, particle size reduction, and lattice substitution (doping), all of which lead to improved electrochemical performance. In addition, cathode prelithiation additives have been proved to be quite effective in improving initial capacity for full cell application. The aim of this review paper is to summarize the strategies of capacity enhancement, to discuss the effect of the cathode prelithiation additives on specific capacity, and to analyze how the features of LFP (including its structure and phase transformation reaction) influence electrochemical properties. Based on this literature data analysis, we gain an insight into capacity-enhancement strategies and provide perspectives for the further capacity development of LFP cathode material.

Electrochemical Performance of Li3V2 (PO4)3/C Cathode Material Prepared by Soft Chemistry Route

2010 ◽  
Vol 129-131 ◽  
pp. 521-525 ◽  
Author(s):  
Feng Wang ◽  
Feng Wu ◽  
Chuan Wu ◽  
Ying Bai ◽  
Lian Wang
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Electrochemical Impedance ◽  
Chemical Diffusion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
High Rate ◽  
Chemical Diffusion Coefficient ◽  
X Ray Diffraction ◽  
Soft Chemistry

Monoclinic Li3V2 (PO4)3/C cathode material has been synthesized by soft chemistry route and the electrochemical performance of this material was investigated. The structure of the particles was characterized by X-ray diffraction (XRD). The Li3V2 (PO4)3/C composite exhibits good cycling performance and excellent rate capabilities when cycled between 3.0 and 4.3 V. At 1C rate, the cell displays a reversible capacity of 117 mAh/g and retains 98.1 % of its initial discharge capacity after 50 cycles. At the high rate of 5C, the capacity could reach 109 mAh/g, corresponding to 93 % of that at 0.5C. Electrochemical impedance spectroscopy (EIS) technique was used to analyze the chemical diffusion coefficient of Li.

scholarly journals A cooperative biphasic MoOx–MoPx promoter enables a fast-charging lithium-ion battery

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Sang-Min Lee ◽  
Junyoung Kim ◽  
Janghyuk Moon ◽  
Kyu-Nam Jung ◽  
Jong Hwa Kim ◽  
...  
Keyword(s):  
Anode Materials ◽  
Surface Engineering ◽  
Dominant Role ◽  
Lithium Ion ◽  
Cycling Performance ◽  
Graphite Anode ◽  
Graphite Surface ◽  
High Rate ◽  
Fast Charging ◽  
Li Ion

AbstractThe realisation of fast-charging lithium-ion batteries with long cycle lifetimes is hindered by the uncontrollable plating of metallic Li on the graphite anode during high-rate charging. Here we report that surface engineering of graphite with a cooperative biphasic MoOx–MoPx promoter improves the charging rate and suppresses Li plating without compromising energy density. We design and synthesise MoOx–MoPx/graphite via controllable and scalable surface engineering, i.e., the deposition of a MoOx nanolayer on the graphite surface, followed by vapour-induced partial phase transformation of MoOx to MoPx. A variety of analytical studies combined with thermodynamic calculations demonstrate that MoOx effectively mitigates the formation of resistive films on the graphite surface, while MoPx hosts Li+ at relatively high potentials via a fast intercalation reaction and plays a dominant role in lowering the Li+ adsorption energy. The MoOx–MoPx/graphite anode exhibits a fast-charging capability (<10 min charging for 80% of the capacity) and stable cycling performance without any signs of Li plating over 300 cycles when coupled with a LiNi0.6Co0.2Mn0.2O2 cathode. Thus, the developed approach paves the way to the design of advanced anode materials for fast-charging Li-ion batteries.

In situ hydrothermal synthesis of double-carbon enhanced novel cobalt germanium hydroxide composites as promising anode material for sodium ion batteries

2021 ◽  
Author(s):  
Ni Wen ◽  
Siyuan Chen ◽  
Jingjie Feng ◽  
Ke Zhang ◽  
Zhiyong Zhou ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Anode Material ◽  
Rate Capability ◽  
Cycling Performance ◽  
Sodium Ion ◽  
High Rate ◽  
Sodium Ion Batteries ◽  
High Rate Capability

The double-carbon confined CGH@C/rGO composite is designed via a facile in situ hydrothermal strategy. When used as an anode for sodium-ion batteries, it exhibits superior reversible capacities, high rate capability, and stable cycling performance.

Spinel/Layered Heterostructured Cathode Material for High-Capacity and High-Rate Li-Ion Batteries

2013 ◽  
Vol 25 (27) ◽  
pp. 3722-3726 ◽  
Author(s):  
Feng Wu ◽  
Ning Li ◽  
Yuefeng Su ◽  
Haofang Shou ◽  
Liying Bao ◽  
...  
Keyword(s):  
Cathode Material ◽  
High Capacity ◽  
High Rate ◽  
Li Ion Batteries ◽  
Li Ion
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