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Title: Dense Graphene Monolith for High Volumetric Energy Density Li-S Batteries

Journal Article · · Advanced Energy Materials
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  1. Tianjin Univ., Tianjin (China)
  2. Tsinghua Univ., Shenzhen (China)
  3. UNSW Australia (The Univ. of New South Wales), Sydney, NSW (Australia)
  4. Argonne National Lab. (ANL), Argonne, IL (United States)
  5. Tianjin Univ., Tianjin (China); Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin (China)

Abstract Despite the outstanding gravimetric performance of lithium–sulfur (Li–S) batteries, their practical volumetric energy density is normally lower than that of lithium‐ion batteries, mainly due to the low density of nanostructured sulfur as well as the porous carbon hosts. Here, a novel approach is developed to fabricate high‐density graphene bulk materials with “ink‐bottle‐like” mesopores by phosphoric acid (H 3 PO 4 ) activation. These pores can effectively confine the polysulfides due to their unique structure with a wide body and narrow neck, which shows only a 0.05% capacity fade per cycle for 500 cycles (75% capacity retention) for accommodating polysulfides. With a density of 1.16 g cm −3 , a hybrid cathode containing 54 wt% sulfur delivers a high volumetric capacity of 653 mA h cm −3 . As a result, a device‐level volumetric energy density as high as 408 W h L −1 is achieved with a cathode thickness of 100 µm. This is a periodic yet practical advance to improve the volumetric performance of Li–S batteries from a device perspective. This work suggests a design principle for the real use Li–S batteries although there is a long way ahead to bridge the gap between Li–S batteries and Li–ion batteries in volumetric performance.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); National Natural Science Foundation of China (NSFC); USDOE
Grant/Contract Number:
AC02-06CH11357; DE–AC02–06CH11357
OSTI ID:
1466311
Alternate ID(s):
OSTI ID: 1425506
Journal Information:
Advanced Energy Materials, Vol. 8, Issue 18; ISSN 1614-6832
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 102 works
Citation information provided by
Web of Science

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Cited By (19)

Thin-Film Electrode Design for High Volumetric Electrochemical Performance Using Metal Sputtering-Combined Ligand Exchange Layer-by-Layer Assembly journal October 2018
Size Effects on the Mechanical Properties of Nanoporous Graphene Networks journal March 2019
Basicity‐Engineered Graphite Fluoride Functionalization and Beyond: An Unusual Reaction between Ultraweak Nucleophile and Ultrastrong CF Bonds journal September 2019
Morphology Reshaping Enabling Self‐Densification of Manganese Oxide Hybrid Materials for High‐Density Lithium Storage Anodes journal October 2019
Electron‐State Confinement of Polysulfides for Highly Stable Sodium–Sulfur Batteries journal March 2020
Minimizing the Electrolyte Volume in Li-S Batteries: A Step Forward to High Gravimetric Energy Density journal August 2018
Nickel–Cobalt Double Hydroxide as a Multifunctional Mediator for Ultrahigh‐Rate and Ultralong‐Life Li–S Batteries journal October 2018
Capture and Catalytic Conversion of Polysulfides by In Situ Built TiO 2 ‐MXene Heterostructures for Lithium–Sulfur Batteries journal March 2019
Ultrahigh Nitrogen Doping of Carbon Nanosheets for High Capacity and Long Cycling Potassium Ion Storage journal October 2019
Structural Design of Lithium–Sulfur Batteries: From Fundamental Research to Practical Application journal June 2018
Waste cotton cloth derived carbon microtube textile: a robust and scalable interlayer for lithium–sulfur batteries journal January 2019
Polyvinylchloride-derived N, S co-doped carbon as an efficient sulfur host for high-performance Li–S batteries journal January 2018
Facile preparation of ultrafine Ti 4 O 7 nanoparticle-embedded porous carbon for high areal capacity lithium–sulfur batteries journal January 2018
Discarded cigarette filter-derived hierarchically porous carbon@graphene composites for lithium–sulfur batteries journal January 2019
Sulfur-anchored azulene as a cathode material for Li–S batteries journal January 2019
Three-dimensional porous carbon materials and their composites as electrodes for electrochemical energy storage systems journal January 2019
Dense monolithic MOF and carbon nanotube hybrid with enhanced volumetric and areal capacities for lithium–sulfur battery journal January 2019
A multi-functional interface derived from thiol-modified mesoporous carbon in lithium–sulfur batteries journal January 2019
Minimizing the Electrolyte Volume in Li-S Batteries: A Step Forward to High Gravimetric Energy Density journal November 2018

Figures / Tables (5)