A general and simple method to synthesize well-crystallized nanostructured vanadium oxides for high performance Li-ion batteries

2015 ◽  
Vol 3 (18) ◽  
pp. 9385-9389 ◽  
Author(s):  
Liye Li ◽  
Pengcheng Liu ◽  
Kongjun Zhu ◽  
Jing Wang ◽  
Jinsong Liu ◽  
...  
Keyword(s):  
High Temperature ◽  
High Performance ◽  
Vanadium Oxides ◽  
Electrochemical Performances ◽  
Li Ion Batteries ◽  
Simple Method ◽  
Mixing Method ◽  
Li Ion

A general and remarkably simple high-temperature mixing method was applied to synthesize three kinds of vanadium oxides with high electrochemical performances.

A simple method to synthesize V2O5 nanostructures with controllable morphology for high performance Li-ion batteries

2016 ◽  
Vol 222 ◽  
pp. 1691-1699 ◽  
Author(s):  
Yaling Rong ◽  
Yali Cao ◽  
Nana Guo ◽  
Yizhao Li ◽  
Wei Jia ◽  
...  
Keyword(s):  
High Performance ◽  
Li Ion Batteries ◽  
Simple Method ◽  
Li Ion

SITE SELECTIVITY IN DOPED POLYANION CATHODE MATERIALS FOR Li-ION BATTERIES

2013 ◽  
Vol 06 (04) ◽  
pp. 1350043 ◽  
Author(s):  
KEYAN LI ◽  
JUNJIE SHAO ◽  
DONGFENG XUE
Keyword(s):  
Cathode Materials ◽  
High Performance ◽  
Ionic Radius ◽  
Current Work ◽  
Li Ion Batteries ◽  
Simple Method ◽  
Site Selectivity ◽  
Li Ion ◽  
Deviation Degree

We propose a simple and effective method to determine the occupancy preference of cations doped in polyanion cathode materials for Li -ion batteries based on ionic electronegativity and ionic radius. The occupancy site can be predicted by comparing the combined deviation degree of electronegativity and radius between the dopant and the substituted ion, and dopants prefer to occupy the site where the deviation degree is less. Based on this method, we predicted the preferred occupancy sites of 38 frequently used ions doped in LiFePO 4 and Li 3 V 2( PO 4)3, which can be in accordance with the available experimental and other calculated results. This simple method established in current work can serve as an effective tool to well predict the preferred occupancy sites of cations doped in cathode materials, which can provide powerful guidance in designing cathode materials for high-performance Li -ion batteries.

Facile fabrication of Si/Sb/Sb2O3/G@C composite electrodes for high-performance Li-ion batteries

2020 ◽  
Vol 44 (10) ◽  
pp. 4122-4128
Author(s):  
Feiyuan Sun ◽  
Hao Feng ◽  
Shilun Gao ◽  
Dandan Yang ◽  
Huabin Yang
Keyword(s):  
Composite Material ◽  
High Temperature ◽  
Ball Milling ◽  
High Performance ◽  
Composite Electrodes ◽  
Li Ion Batteries ◽  
Calcination Process ◽  
Facile Fabrication ◽  
Li Ion ◽  
High Temperature Calcination

Facile fabrication of high-performance Si/Sb/Sb2O3/G@C composite material via the ball milling and high temperature calcination process is reported.

Li-rich layered Li1.2Mn0.54Ni0.13Co0.13O2 derived from transition metal carbonate with a micro–nanostructure as a cathode material for high-performance Li-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (99) ◽  
pp. 96714-96720 ◽  
Author(s):  
Dongmei Dai ◽  
Bao Wang ◽  
Bao Li ◽  
Fan Li ◽  
Xinbo Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
Cathode Material ◽  
High Performance ◽  
Electrochemical Performances ◽  
Li Ion Batteries ◽  
Metal Carbonate ◽  
Tap Density ◽  
Li Ion

Li1.2Mn0.54Ni0.13Co0.13O2, created from designed carbonates with a micro–nanostructure, exhibits an improved tap density and delivers outstanding electrochemical performances for LIBs.

Three-dimensional iron oxyfluoride/N-doped carbon hybrid nanocomposites as high-performance cathodes for rechargeable Li-ion batteries

2019 ◽  
Vol 6 (2) ◽  
pp. 465-472 ◽  
Author(s):  
Xiaopeng Li ◽  
Yongzhi Zhang ◽  
Yan Meng ◽  
Yujue Wang ◽  
Guangqun Tan ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Hybrid Nanocomposites ◽  
Electrochemical Performances ◽  
Li Ion Batteries ◽  
Li Ion

Three-dimensional FeOF/NC hybrid nanocomposites have been successfully synthesized; the 3D nanocomposites exhibit improved electrochemical performances compared to bare FeOF.

scholarly journals Rational Design of Effective Binders for LiFePO4 Cathodes

Polymers ◽  
2021 ◽  
Vol 13 (18) ◽  
pp. 3146
Author(s):  
Shu Huang ◽  
Xiaoting Huang ◽  
Youyuan Huang ◽  
Xueqin He ◽  
Haitao Zhuo ◽  
...  
Keyword(s):  
Structural Design ◽  
High Performance ◽  
Rational Design ◽  
Synthetic Methods ◽  
Electrochemical Performances ◽  
Li Ion Batteries ◽  
Chemical Structures ◽  
Polymer Binders ◽  
Li Ion ◽  
Olivine Structure

Polymer binders are critical auxiliary additives to Li-ion batteries that provide adhesion and cohesion for electrodes to maintain conductive networks upon charge/discharge processes. Therefore, polymer binders become interconnected electrode structures affecting electrochemical performances, especially in LiFePO4 cathodes with one-dimensional Li+ channels. In this paper, recent improvements in the polymer binders used in the LiFePO4 cathodes of Li-ion batteries are reviewed in terms of structural design, synthetic methods, and working mechanisms. The polymer binders were classified into three types depending on their effects on the performances of LiFePO4 cathodes. The first consisted of PVDF and related composites, and the second relied on waterborne and conductive binders. Profound insights into the ability of binder structures to enhance cathode performance were discovered. Overcoming the bottleneck shortage originating from olivine structure LiFePO4 using efficient polymer structures is discussed. We forecast design principles for the polymer binders used in the high-performance LiFePO4 cathodes of Li-ion batteries. Finally, perspectives on the application of future binder designs for electrodes with poor conductivity are presented to provide possible design directions for chemical structures.

Rationally Designed Three-Dimensional Porous Nico 2n@C Reticular Structure for High-Performance Li-Ion Batteries

2020 ◽  
Author(s):  
Peiyao Wang ◽  
Bangchuan Zhao ◽  
Jin Bai ◽  
Kunzhen Li ◽  
Hongyang Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Three Dimensional ◽  
Li Ion Batteries ◽  
Reticular Structure ◽  
Li Ion

Construction of Carbon-Coated [email protected] Nanorod Composites for High-Performance Li-Ion Batteries

2021 ◽  
Author(s):  
Hui Chang ◽  
Ying Li ◽  
Zi-Kui Fang ◽  
Jin-Peng Qu ◽  
Yan-Rong Zhu ◽  
...  
Keyword(s):  
High Performance ◽  
Li Ion Batteries ◽  
Carbon Coated ◽  
Li Ion
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