Amorphous hierarchical MnO2/acetylene black composite with boosting rate performance as anode for lithium-ion batteries

2021 ◽  
Author(s):  
Xiaole Zhang ◽  
Song Li ◽  
Shenghe Wang ◽  
Zhenxu Wang ◽  
Zhongsheng Wen ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Acetylene Black ◽  
Rate Performance

Amorphization is considered as an effective way to enhance the electrochemical performance of electrode materials due to the isotropy and numerous defects. Herein, amorphous hierarchical structure MnO2/acetylene black (a-MnO2/AB) composites...

Self-assembly synthesis of nitrogen-doped mesoporous carbons used as high-performance electrode materials in lithium-ion batteries and supercapacitors

2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Self Assembly ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Mesoporous Carbons ◽  
Nitrogen Doped ◽  
First Time ◽  
Enhanced Electrochemical Performance

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.

Porous diatomite-mixed 1,4,5,8-NTCDA nanowires as high-performance electrode materials for lithium-ion batteries

Nanoscale ◽  
2019 ◽  
Vol 11 (34) ◽  
pp. 15881-15891 ◽  
Author(s):  
Yong Xu ◽  
Jun Chen ◽  
Ze'en Xiao ◽  
Caixia Ou ◽  
Weixia Lv ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Composite Electrode ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Rate Performance ◽  
Transfer Impedance ◽  
Lower Charge

A novel porous diatomite composite electrode composed of NTCDA nanowires exhibits lower charge transfer impedance, higher capacity and better rate performance.

Thermal convection induced TiO2 microclews as superior electrode materials for lithium-ion batteries

2018 ◽  
Vol 6 (25) ◽  
pp. 11688-11693 ◽  
Author(s):  
Lijiang Zhao ◽  
Shitong Wang ◽  
Feng Pan ◽  
Zilong Tang ◽  
Zhongtai Zhang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Thermal Convection ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Carbon Cloth ◽  
Lithium Ions ◽  
Fast Transport

TiO2 microclew filled carbon cloth favours fast transport of lithium ions and electrons, causing high electrochemical performance.

Al-doped VO2(B) nanobelts as cathode material with enhanced electrochemical properties for lithium-ion batteries

2018 ◽  
Vol 11 (04) ◽  
pp. 1850068 ◽  
Author(s):  
Changlei Niu
Keyword(s):  
Electrochemical Performance ◽  
Cathode Material ◽  
Lithium Ion Batteries ◽  
Valence State ◽  
Electrode Materials ◽  
High Capacity ◽  
Lithium Ion ◽  
Lithium Storage ◽  
Free Standing ◽  
Lattice Volume

Aluminium has shown its superiority in stabilization of the monoclinic VO2(B) in free-standing nanobelts. In this paper, aluminium-doped VO2(B) nanobelts are successfully fabricated by a facile one-step hydrothermal method and used as cathode for lithium-ion battery. XPS results show that Al-doping promotes the formation of high valence state of vanadium in VO2(B) nanobelts. Due to the accommodation of valence state of vanadium and lattice volume, Al-doped VO2(B) nanobelts used as the cathode material for lithium-ion batteries exhibit better lithium storage properties with high capacity of 172[Formula: see text]mAh[Formula: see text]g[Formula: see text] and cycling stability than undoped VO2(B) nanobelts. This work demonstrates that the doping of aluminium can significantly enhance the electrochemical performance of VO2(B), suggesting that appropriate cationic doping is an efficient path to improve the electrochemical performance of electrode materials.

scholarly journals Research Progress of Cathode Materials for Lithium-ion Batteries

2021 ◽  
Vol 233 ◽  
pp. 01020
Author(s):  
Kaijia Lu ◽  
Chuanshan Zhao ◽  
Yifei Jiang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Research Progress ◽  
Energy Storage Materials ◽  
Factors Affecting ◽  
New Energy ◽  
Oxide Spinel

Lithium-ion batteries have attracted widespread attention as new energy storage materials, and electrode materials, especially cathode materials, are the main factors affecting the electrochemical performance of lithium-ion batteries, and they also determine the cost of preparing lithium-ion batteries. In recent years, there have been a lot of researches on the selection and modification of cathode materials based on lithium-ion batteries to continuously optimize the electrochemical performance of lithium-ion batteries. This article introduces the research progress of cathode materials for lithium ion batteries, including three types of cathode materials (layer oxide, spinel oxide, polyanionic compound) and three modification methods (doping modification, surface coating modification, nano modification method), and prospects for the future development of lithium ion battery cathode materials.

Hierarchically structured Co3O4@carbon porous fibers derived from electrospun ZIF-67/PAN nanofibers as anodes for lithium ion batteries

2018 ◽  
Vol 6 (27) ◽  
pp. 12962-12968 ◽  
Author(s):  
Chuan-Ling Zhang ◽  
Bing-Rong Lu ◽  
Fu-Hu Cao ◽  
Zhi-Long Yu ◽  
Huai-Ping Cong ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
Carbon Fibers ◽  
Porous Carbon ◽  
Lithium Ion ◽  
Porous Fibers ◽  
Enhanced Electrochemical Performance

Hollow Co3O4 nanoparticle decorated porous carbon fibers with hierarchical structure and enhanced electrochemical performance have been facilely prepared by electrospinning.

Microstructure and electrochemical performance of LiFePO4 cathode materials modified with binuclear metal aminophthalocyanines

2018 ◽  
Vol 22 (12) ◽  
pp. 1072-1081 ◽  
Author(s):  
Yuanyuan Su ◽  
Feifei Xu ◽  
Ruiqiong Wang ◽  
Ronglan Zhang ◽  
Jianshe Zhao
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Preparation Method ◽  
Solvothermal Method ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Initial Discharge ◽  
Lifepo4 Cathode ◽  
Binuclear Metal

The monodispersed LiFe[Formula: see text]M[Formula: see text]PO4/C [[Formula: see text] [Formula: see text] 0.0040; [Formula: see text] = Mn[Formula: see text], Co[Formula: see text], Ni[Formula: see text], Cu[Formula: see text], Zn[Formula: see text]] nanocomposites obtained by LiFePO4 modified with binuclear metal aminophthalocyanines (M2(PcTa)2O and M2(PcTa)2C(CF[Formula: see text] are utilized as positive electrode materials for lithium ion batteries. The preparation method for these nanocomposites is a controllable solvothermal method using a mixture of ethylene glycol and [Formula: see text],[Formula: see text]-dimethylformamide as the solvent. The microstructure and electrochemical properties of the different nanocomposites are discussed and compared. The results show that the LiFePO4 samples modified with M2(PcTa)2C(CF[Formula: see text]can improve the initial discharge specific capacity of the lithium ion battery up to 154.2 mAh.g[Formula: see text]at the rate of 0.1 C, and 93.5% of the initial discharge capacity could be retained after 50 cycles. This research shows that the proposed process can enhance the electrochemical performance of high power LiFePO4 for lithium ion batteries.

A poly-(styrene-acrylonitrile) copolymer-derived hierarchical architecture in electrode materials for lithium-ion batteries

2016 ◽  
Vol 4 (29) ◽  
pp. 11481-11490 ◽  
Author(s):  
Lu Jin ◽  
Guobo Zeng ◽  
Hua Wu ◽  
Markus Niederberger ◽  
Massimo Morbidelli
Keyword(s):  
Lithium Ion Batteries ◽  
Hierarchical Structure ◽  
Anode Materials ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Hierarchical Architecture ◽  
Acrylonitrile Copolymer ◽  
General Methodology ◽  
Styrene Acrylonitrile

A general methodology is proposed to produce active cathode/anode materials for lithium-ion batteries with a hierarchical structure.

scholarly journals Ordered ZnO/Ni Hollow Microsphere Arrays as Anode Materials for Lithium Ion Batteries

Materials ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1193 ◽  
Author(s):  
Shen ◽  
Zhong ◽  
Huang ◽  
Lin ◽  
Wang
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Anode Materials ◽  
Electrode Materials ◽  
Colloidal Crystal ◽  
Retention Rate ◽  
Coulombic Efficiency ◽  
Hollow Microsphere ◽  
Lithium Ion ◽  
Electrode Polarization

Well-designed nanostructures are very important for the electrochemical performance of lithium-ion electrode materials. In order to improve the electrochemical performance of ZnO-based anode materials, ZnO/Ni composite film, assembled by ordered hollow microsphere arrays, is designed and fabricated by means of magnetron sputtering technique using a colloidal crystal template composed of a monolayer of ordered polystyrene (PS) microspheres. The ordered hollow microsphere structure as well as the constituent Ni component of the ZnO/Ni film show major advantages of homogenizing electrode reactions, enhancing electrode reaction kinetics and accommodating volume change of active materials, so they can reduce electrode polarization and stabilize electrode structure. Consequently, the resulting ordered ZnO/Ni hollow microspheres arrays deliver an initial charge capacity of 685 mAh g−1, an initial coulombic efficiency of 68%, and a capacity retention rate of 69% after 100 cycles, all of which are higher than those of the pure ZnO film. These results show progress in developing more stable ZnO-based anode materials for lithium ion batteries.

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