In Situ Construction of Redox-Active Covalent Organic Frameworks/Carbon Nanotube Composites as Anode of Lithium-Ion Batteries

2022 ◽  
Author(s):  
Xiubei Yang ◽  
Chao Lin ◽  
Diandian Han ◽  
Gaojie Li ◽  
Chao Huang ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Active Sites ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Covalent Organic Frameworks ◽  
Redox Active ◽  
Reversible Redox ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

Covalent organic frameworks (COFs) with reversible redox-active sites showed great potential application in constructing electrode materials of lithium-ion batteries (LIBs), whereas their further application is largely restricted by the poor...

scholarly journals Nanostructured SnSb/Carbon Nanotube Composites Synthesized by Reductive Precipitation for Lithium-Ion Batteries.

ChemInform ◽  
2007 ◽  
Vol 38 (32) ◽  
Author(s):  
Min-Sik Park ◽  
Scott A. Needham ◽  
Guo-Xiu Wang ◽  
Yong-Mook Kang ◽  
Jin-Soo Park ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Nanotube Composites ◽  
Carbon Nanotube Composites

In situ Raman and UV-Vis spectroscopic analysis of lithium-ion batteries

2015 ◽  
Vol 1773 ◽  
pp. 33-40 ◽  
Author(s):  
Marcel Heber ◽  
Christian Schilling ◽  
Toni Gross ◽  
Christian Hess
Keyword(s):  
Lithium Ion Batteries ◽  
Spectroscopic Analysis ◽  
Electrode Materials ◽  
Lithium Ion ◽  
In Situ Raman ◽  
Spatially Resolved ◽  
Conductive Additives ◽  
Electrochemical Cycling ◽  
Carbon Based

ABSTRACTThe potential of Raman and UV-Vis diagnostics for spatially-resolved and in situ diagnostics of lithium-ion batteries is demonstrated. Regarding the use of in situ Raman diagnostics focus is put on LiCoO2 electrode materials, which were investigated in detail as composites of LiCoO2 with binder and conductive additives. The potential of in situ UV-Vis analysis is illustrated for carbon-based materials showing significant absorption changes during electrochemical cycling due to lithium de-/intercalation.

Exfoliation of Covalent Organic Frameworks into Few-Layer Redox-Active Nanosheets as Cathode Materials for Lithium-Ion Batteries

2017 ◽  
Vol 139 (12) ◽  
pp. 4258-4261 ◽  
Author(s):  
Shan Wang ◽  
Qianyou Wang ◽  
Pengpeng Shao ◽  
Yuzhen Han ◽  
Xing Gao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Cathode Materials ◽  
Lithium Ion ◽  
Covalent Organic Frameworks ◽  
Redox Active

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.

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