In situ TEM visualization of single atom catalysis in solid-state Na-O2 nanobatteries

2021 ◽  
Author(s):  
Haiming Sun ◽  
Qiunan Liu ◽  
Zhiying Gao ◽  
Lin Geng ◽  
Yanshuai Li ◽  
...  
Keyword(s):  
Solid State ◽  
Catalytic Mechanism ◽  
Single Atom ◽  
In Situ Tem ◽  
Discharge Process ◽  
Catalytic Activities ◽  
Charge Discharge

Single-atom catalysts (SACs) exhibit high catalytic activities in many systems including metal-air batteries. However, the fundamental catalytic mechanism of SACs during charge/discharge process are still unclear. Herein, we report a...

Single atom catalysts supported on N-doped graphene toward fast kinetic Li−S batteries: a theoretical study

2021 ◽  
Author(s):  
Xu Han ◽  
Zeyun Zhang ◽  
Xuefei Xu
Keyword(s):  
Theoretical Study ◽  
Single Atom ◽  
Discharge Process ◽  
Fast Kinetics ◽  
Shuttle Effect ◽  
Sufficient Stability ◽  
Doped Graphene ◽  
Fast Kinetic ◽  
Kinetics Of ◽  
Charge Discharge

To suppress the shuttle effect of lithium polysulfides and promote fast kinetics of charge−discharge process in Li−S batteries, it is essential to search promising catalysts with sufficient stability and high...

Observing Solid-State Formation of Oriented Porous Functional Oxide Nanowire Heterostructures by in Situ TEM

Nano Letters ◽  
2018 ◽  
Vol 18 (9) ◽  
pp. 6064-6070 ◽  
Author(s):  
Jo-Hsuan Ho ◽  
Yi-Hsin Ting ◽  
Jui-Yuan Chen ◽  
Chun-Wei Huang ◽  
Tsung-Chun Tsai ◽  
...  
Keyword(s):  
Solid State ◽  
State Formation ◽  
In Situ Tem ◽  
Nanowire Heterostructures

In situ TEM studies of micron-sized all-solid-state fluoride ion batteries: Preparation, prospects, and challenges

2016 ◽  
Vol 79 (7) ◽  
pp. 615-624 ◽  
Author(s):  
Mohammed Hammad Fawey ◽  
Venkata Sai Kiran Chakravadhanula ◽  
Munnangi Anji Reddy ◽  
Carine Rongeat ◽  
Torsten Scherer ◽  
...  
Keyword(s):  
Solid State ◽  
Fluoride Ion ◽  
In Situ Tem

Phase Separation of Li2S/S at Nanoscale during Electrochemical Lithiation of the Solid-State Lithium-Sulfur Battery Using In Situ TEM

2016 ◽  
Vol 6 (20) ◽  
pp. 1600806 ◽  
Author(s):  
Zhenzhong Yang ◽  
Zhiyong Zhu ◽  
Jie Ma ◽  
Dongdong Xiao ◽  
Xian Kui ◽  
...  
Keyword(s):  
Phase Separation ◽  
Solid State ◽  
In Situ Tem ◽  
Lithium Sulfur Battery ◽  
Electrochemical Lithiation ◽  
Sulfur Battery ◽  
Lithium Sulfur

In Situ TEM Observations of Discharging/Charging of Solid‐State Lithium‐Sulfur Batteries at High Temperatures

Small ◽  
2020 ◽  
Vol 16 (28) ◽  
pp. 2001899 ◽  
Author(s):  
Zaifa Wang ◽  
Yongfu Tang ◽  
Liqiang Zhang ◽  
Meng Li ◽  
Zhiwei Shan ◽  
...  
Keyword(s):  
Solid State ◽  
High Temperatures ◽  
In Situ Tem ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

In Situ tem Cycling of Semi-Solid State Micro-Battery in Liquid Electrolyte

2021 ◽  
Vol MA2021-01 (2) ◽  
pp. 181-181
Author(s):  
Ankush Bhatia ◽  
Maxime Hallot ◽  
Sorina Cretu ◽  
Maxime Berth ◽  
David Troadec ◽  
...  
Keyword(s):  
Solid State ◽  
Liquid Electrolyte ◽  
In Situ Tem ◽  
Semi Solid

In situ TEM study of lithiation into a PPy coated α-MnO2/graphene foam freestanding electrode

2018 ◽  
Vol 2 (8) ◽  
pp. 1481-1488 ◽  
Author(s):  
Mohammad Akbari Garakani ◽  
Sara Abouali ◽  
Jiang Cui ◽  
Jang-Kyo Kim
Keyword(s):  
Electrical Conductivity ◽  
Lithium Ion Batteries ◽  
Large Volume ◽  
Volume Expansion ◽  
Low Cost ◽  
Lithium Ion ◽  
In Situ Tem ◽  
The Many ◽  
Charge Discharge

Even with the many desirable properties, natural abundance and low cost of α-MnO2, its application as an anode in lithium-ion batteries has been limited because of its low intrinsic electrical conductivity and large volume expansion occurring during charge/discharge cycles.

POLY(3,4-ETHYLENEDIOXYTHIOPHENE)/MnO2 MESOPOROUS NANOCOMPOSITE WITH EXCELLENT HIGH-RATE ELECTROCHEMICAL PROPERTIES

2011 ◽  
Vol 04 (01) ◽  
pp. 31-36 ◽  
Author(s):  
QING LU ◽  
YIKAI ZHOU
Keyword(s):  
Current Density ◽  
High Rate ◽  
Discharge Process ◽  
Rate Performance ◽  
Synthetic Route ◽  
Lithium Storage ◽  
High Rate Performance ◽  
A Current ◽  
Charge Discharge

Herein, a modified interfacial synthetic route has been demonstrated by synthesizing uniform poly(3,4-ethylenedioxythiophene)/ MnO 2 hierarchical mesoporous nanocomposite. The in-situ generated polymer has been proven to be effective in constraining the overgrowth of nuclei. Consequently, assembled nanosheets with a thickness less than 5 nm have been prepared. At a high rate of 10 A g-1 charge/discharge process, the nanocomposite electrode retains 73.4% of the specific capacitance exhibited at 1 A g-1. At a current density as large as 800 mA g-1, the nanocomposite electrode attains reversible lithium storage specific capacities of 400 mAh g-1 after 50 cycles and 300 mAh g-1 after 100 cycles. The excellent high-rate performance of the nanocomposite electrode is highlighted in terms of its extremely large surface area, unique microstructure and mesoporous features.

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