scholarly journals A new design strategy for redox-active molecular assemblies with crystalline porous structures for lithium-ion batteries

2020 ◽  
Vol 11 (1) ◽  
pp. 37-43 ◽  
Author(s):  
Kensuke Nakashima ◽  
Takeshi Shimizu ◽  
Yoshinobu Kamakura ◽  
Akira Hinokimoto ◽  
Yasutaka Kitagawa ◽  
...  
Keyword(s):  
Porous Structure ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Organic Molecules ◽  
Lithium Ion ◽  
Design Strategy ◽  
Porous Structures ◽  
Molecular Assemblies ◽  
Active Materials ◽  
Redox Active

A new design strategy for the high-performance organic cathode-active materials of lithium-ion batteries is presented, which involves the assembly of redox-active organic molecules with a crystalline porous structure.

3D hierarchically mesoporous Cu-doped NiO nanostructures as high-performance anode materials for lithium ion batteries

CrystEngComm ◽  
2015 ◽  
Vol 17 (48) ◽  
pp. 9336-9347 ◽  
Author(s):  
Jingyun Ma ◽  
Longwei Yin ◽  
Tairu Ge
Keyword(s):  
Porous Structure ◽  
Lithium Ion Batteries ◽  
Surface Area ◽  
Anode Materials ◽  
High Performance ◽  
Rational Design ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Design And Synthesis ◽  
Hierarchically Porous Structure

We report on the rational design and synthesis of three dimensional (3D) Cu-doped NiO architectures with an adjustable chemical component, surface area, and hierarchically porous structure as anodes for lithium ion battery.

scholarly journals “Wiring” redox-active polyoxometalates to carbon nanotubes using a sonication-driven periodic functionalization strategy

2016 ◽  
Vol 9 (3) ◽  
pp. 1095-1101 ◽  
Author(s):  
Jun Hu ◽  
Yuanchun Ji ◽  
Wei Chen ◽  
Carsten Streb ◽  
Yu-Fei Song
Keyword(s):  
Carbon Nanotubes ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Single Walled Carbon Nanotubes ◽  
Single Walled Carbon ◽  
Redox Active ◽  
One Step ◽  
Walled Carbon Nanotubes

A universal one-step strategy for the periodic deposition of redox-active polyoxometalate nanocrystals on single-walled carbon nanotubes is reported, giving access to high-performance electrodes for lithium-ion batteries.

scholarly journals Facile Fabricated of CNT Based Free-Standing Electrode with Cotton Carbon for Flexible Lithium-Ion Batteries

2020 ◽  
Vol 2 (2) ◽  
pp. 157-163
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
High Capacity ◽  
Lithium Ion ◽  
Free Standing ◽  
Flexible Electrode ◽  
Active Materials ◽  
Commercial Preparation ◽  
Experimental Process ◽  
A Current

Flexible lithium ion batteries (FLIBs) are considered as potential application in the next 20 years for wearable devices and internet of things. However, it is a rough road to commercial preparation of flexible electrodes due to the complicated experimental process and expensive cost. Herein, a- facile fabricated strategy, filtration, is applied to disperse active materials LiFePO4 in conductive flexible network (LFP/CNTs/cotton) as a free-standing cathode for FLIBs. The fabricated free-standing LFP/CNTs/cotton electrode holds promising electrochemical stability, which still has a high capacity of 120 mAh/g at a current density of 2000 mA/g for 900 cycles. In addition, this method can be easily replicated for the flexibility of other powder active materials. This study is of great significance for the industrialization of the flexible electrode and exhibiting great potential in high-performance flexibility energy-related systems.

scholarly journals Rational Design of Stable Four-Electron-Accepting Carbonyl-N-methylpyridinium Species for High-Performance Lithium-Ion Batteries

2021 ◽  
Author(s):  
Xiaoming He ◽  
Xiujuan Wang ◽  
Wenhao Xue ◽  
Guangyuan Gao ◽  
Ling Chen ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Structural Evolution ◽  
Lithium Ion ◽  
Redox States ◽  
Redox Active ◽  
Organic Electrode ◽  
Organic Batteries

Development of novel organics that exhibit multiple and stable redox states, limited solubility and improved conductivity is a highly rewarding direction for improving the performance of lithium-ion batteries (LIBs). As biologically derived organic molecules, carbonylpyridinium compounds have desirable and tunable redox properties, making them suitable candidates for battery applications. In this work, we report a structural evolution of carbonylpyridinium-based redox-active organics, from 2-electron accepting BMP to 4-electron accepting small, conjugated molecules (1, 2), and then to the corresponding conjugated polymers (CP1, CP2). Through suppression of dissolution and increasing electrochemical conductivity, the LIBs performance can be gradually enhanced. At a relatively high current of 0.5 A g-1, high specific capacities for 1 (100 mAh g-1), 2 (260 mAh g-1), CP1 (360 mAh g-1) and CP2 (540 mAh g-1) can be reached after 240 cycles. Particularly, the rate performance and cycling stability of CP2 surpasses many reported commercial inorganic and organic electrode materials. This work provides a promising new carbonylpyridinium-based building block featured with multiple redox centers, on the way to high performance Li-organic batteries.

Large-scale synthesis of Si@C three-dimensional porous structures as high-performance anode materials for lithium-ion batteries

2014 ◽  
Vol 2 (48) ◽  
pp. 20494-20499 ◽  
Author(s):  
Chengmao Xiao ◽  
Ning Du ◽  
Xianxing Shi ◽  
Hui Zhang ◽  
Deren Yang
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Materials ◽  
High Performance ◽  
Large Scale ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Magnesium Silicide ◽  
Porous Structures ◽  
Acid Pickling ◽  
Large Scale Synthesis

We demonstrate the synthesis of Si@C three-dimensional porous structures derived from commercial magnesium silicide (Mg2Si) powder via simple annealing and acid pickling processes.

Anatase/rutile TiO2 nanocomposite microspheres with hierarchically porous structures for high-performance lithium-ion batteries

RSC Advances ◽  
2012 ◽  
Vol 2 (24) ◽  
pp. 9173 ◽  
Author(s):  
Junyao Shen ◽  
Hai Wang ◽  
Yu Zhou ◽  
Naiqing Ye ◽  
Guobao Li ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Porous Structures ◽  
Rutile Tio2 ◽  
Hierarchically Porous
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