Na‐FeCl 2 Batteries: A Low‐Cost Durable Na‐FeCl 2 Battery with Ultrahigh Rate Capability (Adv. Energy Mater. 10/2020)

2020 ◽  
Vol 10 (10) ◽  
pp. 2070042
Author(s):  
Xiaowen Zhan ◽  
Mark E. Bowden ◽  
Xiaochuan Lu ◽  
Jeffery F. Bonnett ◽  
Teresa Lemmon ◽  
...  
Keyword(s):  
Low Cost ◽  
Rate Capability ◽  
Energy Mater

scholarly journals Flexible Batteries: Flexible Na/K‐Ion Full Batteries from the Renewable Cotton Cloth–Derived Stable, Low‐Cost, and Binder‐Free Anode and Cathode (Adv. Energy Mater. 38/2019)

2019 ◽  
Vol 9 (38) ◽  
pp. 1970149 ◽  
Author(s):  
Jin‐Zhi Guo ◽  
Zhen‐Yi Gu ◽  
Xin‐Xin Zhao ◽  
Mei‐Yi Wang ◽  
Xu Yang ◽  
...  
Keyword(s):  
Low Cost ◽  
Cotton Cloth ◽  
Binder Free ◽  
Energy Mater

scholarly journals Recent Progress on Catalysts for the Positive Electrode of Aprotic Lithium-Oxygen Batteries †

Inorganics ◽  
2019 ◽  
Vol 7 (6) ◽  
pp. 69 ◽  
Author(s):  
Yichao Cai ◽  
Yunpeng Hou ◽  
Yong Lu ◽  
Jun Chen
Keyword(s):  
High Performance ◽  
Noble Metals ◽  
Catalytic Mechanism ◽  
Low Cost ◽  
Rate Capability ◽  
Positive Electrode ◽  
Safety Hazards ◽  
Environmental Friendliness ◽  
Potential Safety ◽  
Lithium Oxygen Batteries

Rechargeable aprotic lithium-oxygen (Li-O2) batteries have attracted significant interest in recent years owing to their ultrahigh theoretical capacity, low cost, and environmental friendliness. However, the further development of Li-O2 batteries is hindered by some ineluctable issues, such as severe parasitic reactions, low energy efficiency, poor rate capability, short cycling life and potential safety hazards, which mainly stem from the high charging overpotential in the positive electrode side. Thus, it is of great significance to develop high-performance catalysts for the positive electrode in order to address these issues and to boost the commercialization of Li-O2 batteries. In this review, three main categories of catalyst for the positive electrode of Li-O2 batteries, including carbon materials, noble metals and their oxides, and transition metals and their oxides, are systematically summarized and discussed. We not only focus on the electrochemical performance of batteries, but also pay more attention to understanding the catalytic mechanism of these catalysts for the positive electrode. In closing, opportunities for the design of better catalysts for the positive electrode of high-performance Li-O2 batteries are discussed.

Cu-ion induced self-polymerization of Cu phthalocyanine to prepare low-cost organic cathode materials for Li-ion batteries with ultra-high voltage and ultra-fast rate capability

2021 ◽  
Author(s):  
Haichang Zhang ◽  
Rui Zhang ◽  
Xingjiang Liu ◽  
Fei Ding ◽  
Chunsheng Shi ◽  
...  
Keyword(s):  
High Voltage ◽  
Cathode Materials ◽  
Fast Rate ◽  
Low Cost ◽  
Rate Capability ◽  
Li Ion Batteries ◽  
Practical Application ◽  
Battery Materials ◽  
Li Ion ◽  
Synthesis Routes

High cost, complex synthesis routes and low yield are pressing challenges hindering the practical application of organic battery materials. Herein, copper(II) phthalocyanine (CuPc), one of the most frequently used blue...

Three-Dimensional MoS2/Graphene Hybrid Aerogel as Free-Standing, High-Performance Electrode for Supercapacitor

NANO ◽  
2020 ◽  
Vol 15 (05) ◽  
pp. 2050062
Author(s):  
Zhaolei Meng ◽  
Xiaojian He ◽  
Song Han ◽  
Zijian Hu
Keyword(s):  
Porous Structure ◽  
Surface Area ◽  
High Performance ◽  
Large Scale ◽  
Low Cost ◽  
Hydrothermal Process ◽  
Three Dimensional ◽  
Rate Capability ◽  
Free Standing ◽  
Hybrid Aerogel

Carbon materials are generally employed as supercapacitor electrodes due to their low- cost, high-chemical stability and environmental friendliness. However, the design of carbon structures with large surface area and controllable porous structure remains a daunt challenge. In this work, a three-dimensional (3D) hybrid aerogel with different contents of MoS2 nanosheets in 3D graphene aerogel (MoS2-GA) was synthesized through a facial hydrothermal process. The influences of MoS2 content on microstructure and subsequently on electrochemical properties of MoS2-GA are systematically investigated and an optimized mass ratio with MoS2: GA of 1:2 is chosen to achieve high mechanical robustness and outstanding electrochemical performance in the hybrid structure. Due to the large specific surface area, porous structure and continuous charge transfer network, such MoS2-GA electrodes exhibit high specific capacitance, good rate capability and excellent cyclic stability, showing great potential in large-scale and low-cost fabrication of high-performance supercapacitors.

Porous CoC2O4/Graphene Oxide Nanocomposite for Advanced Potassium-Ion Storage

2019 ◽  
Vol 19 (6) ◽  
pp. 3610-3615 ◽  
Author(s):  
Lifeng Wang ◽  
Kaiyuan Wei ◽  
Pengjun Zhang ◽  
Hong Wang ◽  
Xiujun Qi ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Lithium Ion Batteries ◽  
Low Cost ◽  
Rate Capability ◽  
Lithium Ion ◽  
Potassium Ion ◽  
Practical Applications ◽  
Ion Storage ◽  
Cheap Method ◽  
Excellent Cycling Stability

Potassium-ion batteries (PIBs), as one of the alternatives to lithium-ion batteries (LIBs), have attracted considerable attention on account of the affluence and low-cost of potassium. Moreover, CoC2O4 and graphene oxide (GO) have been used very well in lithium-ion batteries. Hence, the hybrid CoC2O4/GO was investigated as a new anode material for PIBs. The hybrid CoC2O4/GO was synthesized by a facile and cheap method combined with supersonic dispersion. Electrochemical measurements reveal that the hybrid CoC2O4/GO delivered an excellent cycling stability of 166 mAh g−1 at 50 mA g−1 and a superior rate capability even at 1 A g−1. These results demonstrate although the cycle ability was insufficient for practical applications, transition-metal oxalates composites can still bring new hope to the development of PIBs.

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