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Ju‐Myung Kim Jae‐Ho Park Eunmi Jo Hyung‐Seok Kim Seung‐Hyeok Kim Wonyoung Chang Kyung Yoon Chung Sang‐Young Lee 《Liver Transplantation》2020,10(9)
Despite their exceptionally high capacity, overlithiated layered oxides (OLO) have not yet been practically used in lithium‐ion battery cathodes due to necessary toxic/complex chemical activation processes and unsatisfactory electrochemical reliability. Here, a new class of ecofriendly chemical activation strategy based on amphiphilic deoxyribose nucleic acid (DNA)‐wrapped multiwalled carbon nanotubes (MWCNT) is demonstrated. Hydrophobic aromatic bases of DNA have a good affinity for MWCNT via noncovalent π–π stacking interactions, resulting in core (MWCNT)‐shell (DNA) hybrids (i.e., DNA@MWCNT) featuring the predominant presence of hydrophilic phosphate groups (coupled with Na+) in their outmost layers. Such spatially rearranged Na+–phosphate complexes of the DNA@MWCNT efficiently extract Li+ from monoclinic Li2MnO3 of the OLO through cation exchange reaction of Na+–Li+, thereby forming Li4Mn5O12‐type spinel nanolayers on the OLO surface. The newly formed spinel nanolayers play a crucial role in improving the structural stability of the OLO and suppressing interfacial side reactions with liquid electrolytes, eventually providing significant improvements in the charge/discharge kinetics, cyclability, and thermal stability. This beneficial effect of the DNA@MWCNT‐mediated chemical activation is comprehensively elucidated by an in‐depth structural/electrochemical characterization. 相似文献
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Cathode Materials: Ni and Co Segregations on Selective Surface Facets and Rational Design of Layered Lithium Transition‐Metal Oxide Cathodes (Adv. Energy Mater. 9/2016) 
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下载免费PDF全文 Pengfei Yan Jianming Zheng Jiaxin Zheng Zhiguo Wang Gaofeng Teng Saravanan Kuppan Jie Xiao Guoying Chen Feng Pan Ji‐Guang Zhang Chong‐Min Wang 《Liver Transplantation》2016,6(9)
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Lithium‐Ion Batteries: Carbon‐Sheathed MoS2 Nanothorns Epitaxially Grown on CNTs: Electrochemical Application for Highly Stable and Ultrafast Lithium Storage (Adv. Energy Mater. 7/2018) 下载免费PDF全文
下载免费PDF全文 Zijia Zhang Hailei Zhao Yongqiang Teng Xiwang Chang Qing Xia Zhaolin Li Jiejun Fang Zhihong Du Konrad Świerczek 《Liver Transplantation》2018,8(7)
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Electrodes: A Combination of X‐Ray Tomography and Carbon Binder Modeling: Reconstructing the Three Phases of LiCoO2 Li‐Ion Battery Cathodes (Adv. Energy Mater. 8/2014) 下载免费PDF全文
下载免费PDF全文 Lukas Zielke Tobias Hutzenlaub Dean R. Wheeler Ingo Manke Tobias Arlt Nils Paust Roland Zengerle Simon Thiele 《Liver Transplantation》2014,4(8)
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