scholarly journals Realizing the Embedded Growth of Large Li2O2Aggregations by Matching Different Metal Oxides for High-Capacity and High-Rate Lithium Oxygen Batteries

2017 ◽  
Vol 4 (11) ◽  
pp. 1700172 ◽  
Author(s):  
Peng Zhang ◽  
Shoufeng Zhang ◽  
Mu He ◽  
Junwei Lang ◽  
Aimin Ren ◽  
...  
Keyword(s):  
Metal Oxides ◽  
High Capacity ◽  
High Rate ◽  
Lithium Oxygen Batteries

Graphene and Metal Oxide Composites for Supercapacitors

2012 ◽  
Vol 608-609 ◽  
pp. 1074-1077 ◽  
Author(s):  
Yun Fu Liu ◽  
Zhao Hua Jiang ◽  
Guo Hui Yuan
Keyword(s):  
Metal Oxide ◽  
Metal Oxides ◽  
Hydrothermal Method ◽  
High Capacity ◽  
Rate Capability ◽  
Synthetic Methods ◽  
High Rate ◽  
High Rate Capability ◽  
Supercapacitor Electrode ◽  
Oxide Composites

Graphene-metal oxide composites as supercapacitor electrodes combine the large pseudocapacitance of metal oxides with the fascinating electrical and mechanical properties and large surface area of graphene. The synthetic methods for composites are reviewed, including in-siu synthesis, solution mixing, hydrothermal method, microware irradiation and electrochemical deposition. Among these techniques, the hydrothermal method offers an effective and simple way to anchor metal oxides on the 2D graphene sheet uniformly. Consequently, the composites exhibit high capacity, high rate capability and well reversibility, presenting promising prospects as supercapacitor electrode material.

Controllable synthesis of Li3VO4/N doped C nanofibers toward high-capacity and high-rate Li-ion storage

2021 ◽  
pp. 138386
Author(s):  
Zhen Xu ◽  
Daobo Li ◽  
Jie Xu ◽  
Junlin Lu ◽  
Dongmei Zhang ◽  
...  
Keyword(s):  
High Capacity ◽  
High Rate ◽  
Controllable Synthesis ◽  
Ion Storage ◽  
Li Ion

Perfluorinated organics regulating Li2O2 formation and improving stability for Li–oxygen batteries

2021 ◽  
Vol 57 (24) ◽  
pp. 3030-3033
Author(s):  
Yuling Wang ◽  
Fan Bai ◽  
Aiping Wang ◽  
Zhonghui Cui ◽  
Da Wang ◽  
...  
Keyword(s):  
High Capacity ◽  
Oxygen Solubility ◽  
Artificial Blood ◽  
Lithium Oxygen Batteries

Perfluorotributylamine, an artificial blood, is introduced into lithium–oxygen batteries due to its excellent oxygen solubility, achieving superior high capacity and long stability.

Unraveling the Rapid Redox Behavior of Li‐Excess 3d‐Transition Metal Oxides for High Rate Capability

2020 ◽  
Vol 10 (17) ◽  
pp. 1904092 ◽  
Author(s):  
Wooyoung Jin ◽  
Seungjun Myeong ◽  
Jaeseong Hwang ◽  
Haeseong Jang ◽  
Jaekyung Sung ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
Rate Capability ◽  
High Rate ◽  
Redox Behavior ◽  
High Rate Capability

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

High Lithium Insertion Voltage Single-Crystal H2 Ti12 O25 Nanorods as a High-Capacity and High-Rate Lithium-Ion Battery Anode Material

ChemSusChem ◽  
2017 ◽  
Vol 11 (1) ◽  
pp. 299-310 ◽  
Author(s):  
Qiang Guo ◽  
Li Chen ◽  
Zizhao Shan ◽  
Wee Siang Vincent Lee ◽  
Wen Xiao ◽  
...  
Keyword(s):  
Single Crystal ◽  
Lithium Ion Battery ◽  
Anode Material ◽  
High Capacity ◽  
Lithium Ion ◽  
High Rate ◽  
Lithium Insertion ◽  
Battery Anode

High-rate and long-life of Li-ion batteries using reduced graphene oxide/Co3O4 as anode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (29) ◽  
pp. 24320-24330 ◽  
Author(s):  
Junkai He ◽  
Ying Liu ◽  
Yongtao Meng ◽  
Xiangcheng Sun ◽  
Sourav Biswas ◽  
...  
Keyword(s):  
Anode Materials ◽  
High Capacity ◽  
High Rate ◽  
Microwave Method ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Reduced Graphene ◽  
One Step ◽  
Li Ion ◽  
Long Life

A new one-step microwave method was designed for synthesis of rGO/Co3O4, and the Li-ion battery showed high capacity and long life.

Scalable Spray Drying Production of Amorphous V 2 O 5 –EGO 2D Heterostructured Xerogels for High‐Rate and High‐Capacity Aqueous Zinc Ion Batteries

Small ◽  
2022 ◽  
pp. 2105761
Author(s):  
Yubai Zhang ◽  
Jiadong Qin ◽  
Munkhbayar Batmunkh ◽  
Wei Li ◽  
Huaiqin Fu ◽  
...  
Keyword(s):  
Spray Drying ◽  
High Capacity ◽  
Zinc Ion ◽  
High Rate

Hierarchical coral-like MnCo2O4.5@Co-Ni LDH composites on Ni foam as promising electrodes for high-performance supercapacitor

2021 ◽  
Author(s):  
yajun JI ◽  
Fei Chen ◽  
Shufen Tan ◽  
Fuyong Ren
Keyword(s):  
Electrochemical Performance ◽  
Metal Oxides ◽  
High Performance ◽  
High Capacity ◽  
Rate Capability ◽  
Negative Electrode ◽  
High Energy ◽  
Hybrid Nanostructures ◽  
High Energy Density ◽  
Ni Foam

Abstract Transition metal oxides are generally designed as hybrid nanostructures with high performance for supercapacitors by enjoying the advantages of various electroactive materials. In this paper, a convenient and efficient route had been proposed to prepare hierarchical coral-like MnCo2O4.5@Co-Ni LDH composites on Ni foam, in which MnCo2O4.5 nanowires were enlaced with ultrathin Co-Ni layered double hydroxides nanosheets to achieve high capacity electrodes for supercapacitors. Due to the synergistic effect of shell Co-Ni LDH and core MnCo2O4.5, the outstanding electrochemical performance in three-electrode configuration was triggered (high area capacitance of 5.08 F/cm2 at 3 mA/cm2 and excellent rate capability of maintaining 61.69 % at 20 mA/cm2), which is superior to those of MnCo2O4.5, Co-Ni LDH and other metal oxides based composites reported. Meanwhile, the as-prepared hierarchical MnCo2O4.5@Co-Ni LDH electrode delivered improved electrical conductivity than that of pristine MnCo2O4.5. Furthermore, the as-constructed asymmetric supercapacitor using MnCo2O4.5@Co-Ni LDH as positive and activated carbon as negative electrode presented a rather high energy density of 220 μWh/cm2 at 2400 μW/cm2 and extraordinary cycling durability with the 100.0 % capacitance retention over 8000 cycles at 20 mA/cm2, demonstrating the best electrochemical performance compared to other asymmetric supercapacitors using metal oxides based composites as positive electrode material. It can be expected that the obtained MnCo2O4.5@Co-Ni LDH could be used as the high performance and cost-effective electrode in supercapacitors.

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