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Office of Scientific and Technical Information
 

Alkali metal-sulfur secondary battery containing cathode material particulates

Patent ·
OSTI ID:1840452
;

Provided is a rechargeable alkali metal-sulfur cell comprising an anode active material layer, an electrolyte, and a cathode active material layer comprising multiple particulates, wherein at least one of the particulates comprises one or a plurality of sulfur-containing material particles being embraced or encapsulated by a thin layer of a conductive sulfonated elastomer composite having from 0.01% to 50% by weight of a conductive reinforcement material dispersed in a sulfonated elastomeric matrix material, wherein the conductive reinforcement material is selected from graphene sheets, carbon nanotubes, carbon nanofibers, metal nanowires, conductive polymer fibers, or a combination thereof and the composite has a recoverable tensile strain from 2% to 500%, a lithium ion conductivity from 10−7 S/cm to 5×10−2 S/cm, and a thickness from 0.5 nm to 10 μm. This battery exhibits an excellent combination of high sulfur content, high sulfur utilization efficiency, high energy density, and long cycle life.

Research Organization:
Global Graphene Group, Inc., Dayton, OH (United States)
Sponsoring Organization:
USDOE; SBIR
Assignee:
Global Graphene Group, Inc. (Dayton, OH)
Patent Number(s):
11,121,398
Application Number:
16/010,213
OSTI ID:
1840452
Country of Publication:
United States
Language:
English

References (20)

Mixed Surfactant Template Method for Preparation of Nanometer Selenium journal January 2009
An Organic Acid-induced Synthesis and Characterization of Selenium Nanoparticles journal January 2011
Halogenated Graphenes: Rapidly Growing Family of Graphene Derivatives journal July 2013
Synthesis of selenium nanoparticles in the presence of polysaccharides journal August 2004
Shape-controlled synthesis of cubic-like selenium nanoparticles via the self-assembly method journal November 2016
Observation in the Growth of Selenium Nanoparticles journal April 2004
A Novel Method for Synthesis of Sulfonated SBS Ionomers by Ring-Opening Reaction of Epoxidized SBS, Their Characterization, Properties, and Blends journal October 2007
Diameter-selected synthesis of single crystalline trigonal selenium nanowires journal February 2007
A highly ordered nanostructured carbon–sulphur cathode for lithium–sulphur batteries journal May 2009
Solvothermal synthesis of trigonal selenium with butterfly-like microstructure journal October 2013
Hollow selenium encapsulated into 3D graphene hydrogels for lithium–selenium batteries with high rate performance and cycling stability journal January 2017
Sulfonation and characterization of poly(styrene-isobutylene-styrene) triblock copolymers at high ion-exchange capacities journal April 2004
Versatile Supramolecular Cross-Linker: A Rotaxane Cross-Linker That Directly Endows Vinyl Polymers with Movable Cross-Links journal March 2013
Selenium nanowires and nanotubes synthesized via a facile template-free solution method journal June 2010
Large-Scale Synthesis of High Quality Trigonal Selenium Nanowires journal September 2003
Fiber-reinforced composite foam from expandable PVC microspheres journal December 2003
Elastomeric Nanocomposite Based on Exfoliated Graphene Oxide and Its Characteristics without Vulcanization journal January 2017
Highly elastic binders integrating polyrotaxanes for silicon microparticle anodes in lithium ion batteries journal July 2017
Solutions for the problems of silicon–carbon anode materials for lithium-ion batteries journal June 2018
Novel Synthetic Strategy for the Sulfonation of Polybutadiene and Styrene–Butadiene Copolymers journal January 2013

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