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Title: Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material

Abstract

A flexible, asymmetric electrochemical cell comprising: (A) A sheet of graphene paper as first electrode comprising nano graphene platelets having a platelet thickness less than 1 nm, wherein the first electrode has electrolyte-accessible pores; (B) A thin-film or paper-like first separator and electrolyte; and (C) A thin-film or paper-like second electrode which is different in composition than the first electrode; wherein the separator is sandwiched between the first and second electrode to form a flexible laminate configuration. The asymmetric supercapacitor cells with different NGP-based electrodes exhibit an exceptionally high capacitance, specific energy, and stable and long cycle life.

Inventors:
;
Issue Date:
Research Org.:
Nanotek Instruments, Inc., Dayton, OH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1532087
Patent Number(s):
9979060
Application Number:
15/463,531
Assignee:
Nanotek Instruments, Inc. (Dayton, OH)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01G - CAPACITORS
Resource Type:
Patent
Resource Relation:
Patent File Date: 2017-03-20
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 42 ENGINEERING; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Zhamu, Aruna, and Jang, Bor Z. Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material. United States: N. p., 2018. Web.
Zhamu, Aruna, & Jang, Bor Z. Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material. United States.
Zhamu, Aruna, and Jang, Bor Z. Tue . "Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material". United States. https://www.osti.gov/servlets/purl/1532087.
@article{osti_1532087,
title = {Flexible asymmetric electrochemical cells using nano graphene platelet as an electrode material},
author = {Zhamu, Aruna and Jang, Bor Z.},
abstractNote = {A flexible, asymmetric electrochemical cell comprising: (A) A sheet of graphene paper as first electrode comprising nano graphene platelets having a platelet thickness less than 1 nm, wherein the first electrode has electrolyte-accessible pores; (B) A thin-film or paper-like first separator and electrolyte; and (C) A thin-film or paper-like second electrode which is different in composition than the first electrode; wherein the separator is sandwiched between the first and second electrode to form a flexible laminate configuration. The asymmetric supercapacitor cells with different NGP-based electrodes exhibit an exceptionally high capacitance, specific energy, and stable and long cycle life.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {5}
}

Patent:

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