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Graphene Surface-Enabled Lithium Ion-Exchanging Cells: Next-Generation High-Power Energy Storage Devices
Abstract
Herein reported is a fundamentally new strategy for the design of high-power and high energy-density devices. This approach is based on the exchange of lithium ions between the surfaces (not the bulk) of two nanostructured electrodes, completely obviating the need for lithium intercalation or deintercalation. In both electrodes, massive graphene surfaces in direct contact with liquid electrolyte are capable of rapidly and reversibly capturing lithium ions through surface adsorption and/or surface redox reaction. These devices, based on unoptimized materials and configuration, are already capable of storing an energy density of 160 Wh/kgcell, which is 30 times higher than that (5 Wh/kgcell) of conventional symmetric supercapacitors and comparable to that of Li-ion batteries. They are also capable of delivering a power density of 100 kW/kgcell, which is 10 times higher than that (10 kW/kgcell) of supercapacitors and 100 times higher than that (1 kW/kgcell) of Li-ion batteries.
Description of materials and methods. This material is available free of charge via the Internet at http://pubs.acs.org.
Citing Articles
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This article has been cited by 13 ACS Journal articles (5 most recent appear below).
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Zhong-Jie Jiangand Zhongqing JiangACS Applied Materials & Interfaces2014 6 (21), 19082-19091Nitrogen-doped holey graphene hollow microspheres (NHGHSs), synthesized through a template sacrificing method, were utilized as an anode material for lithium ion batteries (LIBs). Because of their specific microspherical hollow structure comprising ...
CoO Hollow Cube/Reduced Graphene Oxide Composites with Enhanced Lithium Storage Capability
Xin Guan, Jianwei Nai, Yuping Zhang, Pengxi Wang, Jie Yang, Lirong Zheng, Jing Zhang, and Lin GuoChemistry of Materials2014 26 (20), 5958-5964CoO Hollow Cube/Reduced Graphene Oxide Composites with Enhanced Lithium Storage Capability
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Defect Evolution in Graphene upon Electrochemical Lithiation
Laila Jaber-Ansari, Kanan P. Puntambekar, Hadi Tavassol, Handan Yildirim, Alper Kinaci, Rajan Kumar, Spencer J. Saldaña, Andrew A. Gewirth, Jeffrey P. Greeley, Maria K. Y. Chan, and Mark C. HersamACS Applied Materials & Interfaces2014 6 (20), 17626-17636Defect Evolution in Graphene upon Electrochemical Lithiation
Laila Jaber-Ansari, Kanan P. Puntambekar, Hadi Tavassol, Handan Yildirim, Alper Kinaci, Rajan Kumar, Spencer J. Saldaña, Andrew A. Gewirth, Jeffrey P. Greeley, Maria K. Y. Chan, and Mark C. HersamACS Applied Materials & Interfaces2014 6 (20), 17626-17636Despite rapidly growing interest in the application of graphene in lithium ion batteries, the interaction of the graphene with lithium ions and electrolyte species during electrochemical cycling is not fully understood. In this work, we use Raman ...
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History
- Published In Issue September 14, 2011
- Article ASAPAugust 11, 2011
- Just Accepted ManuscriptAugust 08, 2011
- Received: May 31, 2011
Revised: August 01, 2011
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