Tuning Anionic Redox Activity and Reversibility for a High‐Capacity Li‐Rich Mn‐Based Oxide Cathode via an Integrated Strategy

2019 ◽  
Vol 29 (10) ◽  
pp. 1806706 ◽  
Author(s):  
Qingyuan Li ◽  
Dong Zhou ◽  
Lijuan Zhang ◽  
De Ning ◽  
Zhenhua Chen ◽  
...  
Keyword(s):  
High Capacity ◽  
Redox Activity ◽  
Integrated Strategy ◽  
Oxide Cathode

X-ray and thermal analysis of high-capacity iron- and nickel-containing lithium-rich layered-oxide cathode treated by carbothermal reduction

2018 ◽  
Vol 290 ◽  
pp. 577-585 ◽  
Author(s):  
Kaoru Narita ◽  
Ryota Yuge ◽  
Sadanori Kuroshima ◽  
Mitsuharu Tabuchi ◽  
Kyosuke Doumae ◽  
...  
Keyword(s):  
Thermal Analysis ◽  
Carbothermal Reduction ◽  
High Capacity ◽  
X Ray ◽  
Layered Oxide ◽  
Oxide Cathode

High capacity sodium-rich layered oxide cathode for sodium-ion batteries

2018 ◽  
Vol 27 (11) ◽  
pp. 118801
Author(s):  
Gen-Cai Guo ◽  
Changhao Wang ◽  
Bang-Ming Ming ◽  
Si-Wei Luo ◽  
Heng Su ◽  
...  
Keyword(s):  
High Capacity ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Layered Oxide ◽  
Oxide Cathode

scholarly journals A high-capacity cathode for rechargeable K-metal battery based on reversible superoxide-peroxide conversion

2020 ◽  
Author(s):  
Yu Qiao ◽  
Han Deng ◽  
Zhi Chang ◽  
Xin Cao ◽  
Huijun Yang ◽  
...  
Keyword(s):  
Low Cost ◽  
High Capacity ◽  
High Energy ◽  
Redox Activity ◽  
Storage Device ◽  
O2 Evolution ◽  
Energy Storage Device ◽  
Limited Capacity ◽  
Metal Anode

Abstract As a promising low-cost energy storage device, the development of rechargeable potassium-ion battery (KIB) is severely hindered by the limited capacity of cathode candidates. Regarded as an attractive capacity-boosting strategy, triggering the O-related anionic redox activity has not been achieved within sealed KIB system. Herein, different from the typical gaseous open K-O2 battery (O2/KO2 redox), we originally realize the reversible superoxide/peroxide (KO2/K2O2) interconversion on a KO2-based cathode. Controlled within a sealed cell environment, the irreversible O2 evolution and electrolyte decomposition (induced by superoxide anion (O2−) formation) are effectively restrained. Rationally controlling the reversible depth-of-charge at 300 mAh/g (based on the mass of KO2), no obvious cell degradation can be observed during 900 cycles. Moreover, benefit from electrolyte modification, KO2-based cathode is coupled with limited amount of K-metal anode (merely 2.5 times excess), harvesting a K-metal full-cell with high-energy-efficiency (∼90%) and long-term cycling stability (over 300 cycles).

Operando X-ray Absorption Spectroscopy and Emission Kβ1,3 Study of the Manganese Redox Activity in High-Capacity Li4Mn2O5 Cathode

2018 ◽  
Vol 122 (51) ◽  
pp. 29586-29597 ◽  
Author(s):  
Maria Diaz-Lopez ◽  
Yves Joly ◽  
Melanie Freire ◽  
Claire Colin ◽  
Olivier Proux ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
High Capacity ◽  
Redox Activity ◽  
X Ray ◽  
X Ray Absorption

Calcium ion pinned vanadium oxide cathode for high-capacity and long-life aqueous rechargeable zinc-ion batteries

2020 ◽  
Vol 63 (12) ◽  
pp. 1767-1776
Author(s):  
Min Du ◽  
Feng Zhang ◽  
Xiaofei Zhang ◽  
Wentao Dong ◽  
Yuanhua Sang ◽  
...  
Keyword(s):  
Vanadium Oxide ◽  
Calcium Ion ◽  
High Capacity ◽  
Zinc Ion ◽  
Oxide Cathode ◽  
Long Life

Sodium transition metal oxides: the preferred cathode choice for future sodium-ion batteries?

2021 ◽  
Author(s):  
Qiannan Liu ◽  
Zhe Hu ◽  
Weijie Li ◽  
Chao Zou ◽  
Huile Jin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Oxide ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
High Capacity ◽  
Transition Metal Oxide ◽  
Sodium Ion ◽  
Redox Activity ◽  
Sodium Ion Batteries ◽  
Oxide Cathodes

This work provides guidance on controlling anionic redox activity and finding novel high-capacity transition metal oxide cathodes for sodium-ion batteries.

The rational design of a redox-active mixed ion/electron conductor as a multi-functional binder for lithium-ion batteries

2021 ◽  
Author(s):  
Chihyun Hwang ◽  
Jungho Lee ◽  
Jihong Jeong ◽  
Eunryeol Lee ◽  
Jonghak Kim ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Rational Design ◽  
High Capacity ◽  
Lithium Ion ◽  
Redox Activity ◽  
Redox Active ◽  
Additional Capacity

A redox-active mixed ion and electron conductor (redox-active MIEC) is presented as a binder. High capacity was guaranteed, particularly at high rates due to its MIEC nature, while an additional capacity was achieved from its redox activity.

X-ray Absorption Spectroscopy Investigation of Lithium-Rich, Cobalt-Poor Layered-Oxide Cathode Material with High Capacity

2014 ◽  
Vol 2 (1) ◽  
pp. 85-97 ◽  
Author(s):  
Daniel Buchholz ◽  
Jie Li ◽  
Stefano Passerini ◽  
Giuliana Aquilanti ◽  
Diandian Wang ◽  
...  
Keyword(s):  
Cathode Material ◽  
Absorption Spectroscopy ◽  
High Capacity ◽  
X Ray ◽  
Layered Oxide ◽  
Oxide Cathode ◽  
X Ray Absorption
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