Triggering Phase Transition and Capacity Enhancement of Nb2O5 for Fast-Charging Lithium-ion Storage

2021 ◽  
Author(s):  
Fei Shen ◽  
Zhongti Sun ◽  
Liang Zhao ◽  
Yuanhua Xia ◽  
Yanyan Shao ◽  
...  
Keyword(s):  
Phase Transition ◽  
Energy Density ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Capacity Enhancement ◽  
Fast Charging ◽  
Ion Storage

Developing high energy density and high-power density electrode materials is of great importance for lithium-ion batteries to satisfy the requirements of customer market. We report that introducing Mo into Nb2O5...

scholarly journals Nitrogen-enriched graphene framework from a large-scale magnesiothermic conversion of CO2 with synergistic kinetics for high-power lithium-ion capacitors

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Chen Li ◽  
Xiong Zhang ◽  
Kai Wang ◽  
Xianzhong Sun ◽  
Yanan Xu ◽  
...  
Keyword(s):  
Energy Density ◽  
High Power ◽  
Power Output ◽  
Large Scale ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Chemical Doping ◽  
Lithium Ion Capacitor

AbstractLithium-ion capacitors are envisaged as promising energy-storage devices to simultaneously achieve a large energy density and high-power output at quick charge and discharge rates. However, the mismatched kinetics between capacitive cathodes and faradaic anodes still hinder their practical application for high-power purposes. To tackle this problem, the electron and ion transport of both electrodes should be substantially improved by targeted structural design and controllable chemical doping. Herein, nitrogen-enriched graphene frameworks are prepared via a large-scale and ultrafast magnesiothermic combustion synthesis using CO2 and melamine as precursors, which exhibit a crosslinked porous structure, abundant functional groups and high electrical conductivity (10524 S m−1). The material essentially delivers upgraded kinetics due to enhanced ion diffusion and electron transport. Excellent capacities of 1361 mA h g−1 and 827 mA h g−1 can be achieved at current densities of 0.1 A g−1 and 3 A g−1, respectively, demonstrating its outstanding lithium storage performance at both low and high rates. Moreover, the lithium-ion capacitor based on these nitrogen-enriched graphene frameworks displays a high energy density of 151 Wh kg−1, and still retains 86 Wh kg−1 even at an ultrahigh power output of 49 kW kg−1. This study reveals an effective pathway to achieve synergistic kinetics in carbon electrode materials for achieving high-power lithium-ion capacitors.

High energy density lithium ion batteries using Li2.6Co0.4−xCuxN (anode) and Cu0.04V2O5 (cathode) electrode materials

2008 ◽  
Vol 62 (26) ◽  
pp. 4210-4212 ◽  
Author(s):  
Daliang Liu ◽  
Shiying Zhan ◽  
Gang Chen ◽  
Wencheng Pan ◽  
Chunzhong Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Cathode Electrode

Manganese phosphoxide/Ni5P4 hybrids as an anode material for high energy density and rate potassium-ion storage

2021 ◽  
Author(s):  
Sen Yang ◽  
Ting Li ◽  
Yiwei Tan
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Large Scale ◽  
Low Cost ◽  
Lithium Ion ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Active Materials ◽  
Ion Storage

Potassium-ion batteries (PIBs) that serve as low-cost and large-scale secondary batteries are regarded as promising alternatives and supplement to lithium-ion batteries. Hybrid active materials can be featured with the synergistic...

scholarly journals Challenges of Fast Charging for Electric Vehicles and the Role of Red Phosphorus as Anode Material: Review

2019 ◽  
Author(s):  
Hong Zhao ◽  
Li Wang ◽  
Zonghai Chen ◽  
Xiangming He
Keyword(s):  
Power Systems ◽  
Electric Vehicles ◽  
Electrode Materials ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Red Phosphorus ◽  
Double Standards ◽  
Fast Charging ◽  
Range Anxiety

Electric vehicles (EVs) are being endorsed as the uppermost successor to fuel-powered cars, with timetables for banning the sale of petrol-fueled vehicles announced in many countries. However, the range and charging times of EVs are still considerable concerns. Fast charging could be a solution to consumers' range anxiety and the acceptance of EVs. Nevertheless, it is a complicated and systematized challenge to realize the fast charging of EVs because it includes the coordinated development of battery cells, including electrode materials, EV battery power systems, charging piles, electric grids, etc. This paper aims to serve as an analysis for the development of fast-charging technology, with a discussion of the current situation, constraints and development direction of EV fast-charging technologies from the macroscale and microscale perspectives of fast-charging challenges. It is emphasized that to essentially solve the problem of fast charging, the development of new battery materials, especially anode materials with improved lithium ion diffusion coefficients, is the key. It is highlighted that red phosphorus is the most promising anode that can simultaneously satisfy the double standards of high-energy density and fast-charging performance to a maximum degree.

Freestanding LiFe0.2Mn0.8PO4/rGO nanocomposites as high energy density fast charging cathodes for lithium-ion batteries

2020 ◽  
Vol 16 ◽  
pp. 100416
Author(s):  
F. Zoller ◽  
D. Böhm ◽  
J. Luxa ◽  
M. Döblinger ◽  
Z. Sofer ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Fast Charging

Boosting High Energy Density Lithium-Ion Storage via the Rational Design of an FeS-Incorporated Sulfurized Polyacrylonitrile Fiber Hybrid Cathode

2019 ◽  
Vol 11 (33) ◽  
pp. 29924-29933 ◽  
Author(s):  
Anupriya K. Haridas ◽  
Jungwon Heo ◽  
Ying Liu ◽  
Hyo-Jun Ahn ◽  
Xiaohui Zhao ◽  
...  
Keyword(s):  
Energy Density ◽  
Rational Design ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Polyacrylonitrile Fiber ◽  
Ion Storage

Achieving high energy density in a 4.5 V all nitrogen-doped graphene based lithium-ion capacitor

2019 ◽  
Vol 7 (34) ◽  
pp. 19909-19921 ◽  
Author(s):  
Ronghua Wang ◽  
Qiannan Zhao ◽  
Weikang Zheng ◽  
Zongling Ren ◽  
Xiaolin Hu ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
High Power Density ◽  
Ultrahigh Energy ◽  
Nitrogen Doped ◽  
Lithium Ion Capacitor ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene

A 4.5 V “dual carbon” LIC device is constructed based on all nitrogen doped graphene nanostructures. It could achieve an ultrahigh energy density of 187.9 W h kg−1 at a high power density of 2250 W kg−1 due to the alleviating kinetic mismatch.

scholarly journals Design of Red Phosphorus Nanostructured Electrode for Fast-Charging Lithium-Ion Batteries with High Energy Density

Joule ◽  
2019 ◽  
Vol 3 (4) ◽  
pp. 1080-1093 ◽  
Author(s):  
Yongming Sun ◽  
Li Wang ◽  
Yanbin Li ◽  
Yuzhang Li ◽  
Hye Ryoung Lee ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Red Phosphorus ◽  
Nanostructured Electrode ◽  
Fast Charging
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