2018
DOI: 10.1002/adma.201804089
|View full text |Cite
|
Sign up to set email alerts
|

A 3D Nitrogen‐Doped Graphene/TiN Nanowires Composite as a Strong Polysulfide Anchor for Lithium–Sulfur Batteries with Enhanced Rate Performance and High Areal Capacity

Abstract: Lithium–sulfur (Li–S) batteries have attracted remarkable attention due to their high theoretical capacity of 1675 mAh g−1, rich resources, inexpensiveness, and environmental friendliness. However, the practical application of the Li–S battery is hindered by the shuttling of soluble lithium polysulfides (LiPSs) and slow redox reactions. Herein, a 3D nitrogen‐doped graphene/titanium nitride nanowires (3DNG/TiN) composite is reported as a freestanding electrode for Li–S batteries. The highly porous conductive gr… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
4
1

Citation Types

4
178
0

Year Published

2019
2019
2023
2023

Publication Types

Select...
8
2

Relationship

0
10

Authors

Journals

citations
Cited by 271 publications
(182 citation statements)
references
References 55 publications
4
178
0
Order By: Relevance
“…As a result, the Li + diffusion in the pore walls along the cross‐plane direction is very low, and Li + cannot reach the lithium‐storage sites between the stacking graphene sheets, which seriously limits the LIBs performance of GF, particularly at high rate or mass loading level. As a result, the rather low areal capacity or current density of reported 3D graphene electrode rarely exceeds those of today's LIBs (≈3 mAh cm −2 , 4 mA cm −2 ) …”
Section: Introductionmentioning
confidence: 92%
“…As a result, the Li + diffusion in the pore walls along the cross‐plane direction is very low, and Li + cannot reach the lithium‐storage sites between the stacking graphene sheets, which seriously limits the LIBs performance of GF, particularly at high rate or mass loading level. As a result, the rather low areal capacity or current density of reported 3D graphene electrode rarely exceeds those of today's LIBs (≈3 mAh cm −2 , 4 mA cm −2 ) …”
Section: Introductionmentioning
confidence: 92%
“…With a sulfur loading of 5.5 mg cm −2 , the yolk‐shell nanobox incorporated with sulfur as the cathode delivers an initial capacity of 6.07 mA h cm −2 and maintains 77.4% of the capacity after 200 cycles at 0.1 C. For the nitride, a composite composed of titanium nitride nanowires and nitrogen‐doped graphene was reported as the free‐standing sulfur host for Li–S battery. [ 68 ] At the current density of 8.03 mA cm −2 with 9.6 mg cm −2 loading, the obtained cathode can achieve an areal capacity of 12 mA h cm −2 and remains at 9.96 mA h cm −2 after 60 cycles, which is attributed to the strong chemical anchor effect of the TiN toward polysulfides. Metal sulfides have also been proved to be the promising sulfur host due to their strong chemical binding toward LiPSs.…”
Section: Suppressing Shuttling Of the Intermediatesmentioning
confidence: 99%
“…However, its commercialization still has many problems such as poor electronic conductivity of sulfur, the dissolution in the electrolyte, and low active material utilization . To solve these problems, various matrix materials to support sulfur such as carbon nanotube (CNT), graphene, metal organic framework (MOF), and covalent organic framework (COF) have been widely explored. Due to the well‐defined pore structure, high specific surface area and rich functional groups, COF as sulfur host materials has been also explored as an effective way to restrain polysulfide shuttling because it can chemically adsorb polysulfides .…”
Section: Introductionmentioning
confidence: 99%