On-site chemical pre-lithiation of S cathode at room temperature on a 3D nano-structured current collector

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Abstract

This work reports a new chemical pre-lithiation method to fabricate lithium sulfide (Li2S) cathode. This pre-lithiation process is taken place simply by dropping the organolithium reagent lithium naphthalenide (Li+Naph) on the prepared sulfur cathode. It is the first time realizing the room temperature chemical pre-lithaition reaction attributed by the 3D nanostructured carbon nanotube (CNT) current collector. It is confirmed that the Li2S cathode fabricated at room temperature showing higher capacity and lower hysteresis than the Li2S cathode fabricated at high temperature pre-lithiation. The pre-lithiated Li2S cathode at room temperature shows stable cycling performance with a 600 mAh g−1 capacity after 100 cycles at 0.1 C-rate and high capacity of 500 mAh g−1 at 2 C-rate. This simple on-site pre-lithiation method at room temperature is demonstrated to be applicable for the in-situ pre-lithiation in a Li metal free battery.

Original languageEnglish
Pages (from-to)65-71
Number of pages7
JournalJournal of Power Sources
Volume366
DOIs
Publication statusPublished - 2017

Fingerprint

accumulators
Cathodes
cathodes
room temperature
Lithium
Temperature
lithium
cycles
Carbon Nanotubes
Sulfur
reagents
Hysteresis
electric batteries
sulfides
Carbon nanotubes
sulfur
Metals
carbon nanotubes
hysteresis
metals

Keywords

  • CNT
  • Li-S battery
  • Lithium naphthalenide
  • Pre-lithiation
  • Room temperature

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

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title = "On-site chemical pre-lithiation of S cathode at room temperature on a 3D nano-structured current collector",
abstract = "This work reports a new chemical pre-lithiation method to fabricate lithium sulfide (Li2S) cathode. This pre-lithiation process is taken place simply by dropping the organolithium reagent lithium naphthalenide (Li+Naph−) on the prepared sulfur cathode. It is the first time realizing the room temperature chemical pre-lithaition reaction attributed by the 3D nanostructured carbon nanotube (CNT) current collector. It is confirmed that the Li2S cathode fabricated at room temperature showing higher capacity and lower hysteresis than the Li2S cathode fabricated at high temperature pre-lithiation. The pre-lithiated Li2S cathode at room temperature shows stable cycling performance with a 600 mAh g−1 capacity after 100 cycles at 0.1 C-rate and high capacity of 500 mAh g−1 at 2 C-rate. This simple on-site pre-lithiation method at room temperature is demonstrated to be applicable for the in-situ pre-lithiation in a Li metal free battery.",
keywords = "CNT, Li-S battery, Lithium naphthalenide, Pre-lithiation, Room temperature",
author = "Yunwen Wu and Toshiyuki Momma and Seongki Ahn and Tokihiko Yokoshima and Hiroki Nara and Tetsuya Osaka",
year = "2017",
doi = "10.1016/j.jpowsour.2017.08.113",
language = "English",
volume = "366",
pages = "65--71",
journal = "Journal of Power Sources",
issn = "0378-7753",
publisher = "Elsevier",

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TY - JOUR

T1 - On-site chemical pre-lithiation of S cathode at room temperature on a 3D nano-structured current collector

AU - Wu, Yunwen

AU - Momma, Toshiyuki

AU - Ahn, Seongki

AU - Yokoshima, Tokihiko

AU - Nara, Hiroki

AU - Osaka, Tetsuya

PY - 2017

Y1 - 2017

N2 - This work reports a new chemical pre-lithiation method to fabricate lithium sulfide (Li2S) cathode. This pre-lithiation process is taken place simply by dropping the organolithium reagent lithium naphthalenide (Li+Naph−) on the prepared sulfur cathode. It is the first time realizing the room temperature chemical pre-lithaition reaction attributed by the 3D nanostructured carbon nanotube (CNT) current collector. It is confirmed that the Li2S cathode fabricated at room temperature showing higher capacity and lower hysteresis than the Li2S cathode fabricated at high temperature pre-lithiation. The pre-lithiated Li2S cathode at room temperature shows stable cycling performance with a 600 mAh g−1 capacity after 100 cycles at 0.1 C-rate and high capacity of 500 mAh g−1 at 2 C-rate. This simple on-site pre-lithiation method at room temperature is demonstrated to be applicable for the in-situ pre-lithiation in a Li metal free battery.

AB - This work reports a new chemical pre-lithiation method to fabricate lithium sulfide (Li2S) cathode. This pre-lithiation process is taken place simply by dropping the organolithium reagent lithium naphthalenide (Li+Naph−) on the prepared sulfur cathode. It is the first time realizing the room temperature chemical pre-lithaition reaction attributed by the 3D nanostructured carbon nanotube (CNT) current collector. It is confirmed that the Li2S cathode fabricated at room temperature showing higher capacity and lower hysteresis than the Li2S cathode fabricated at high temperature pre-lithiation. The pre-lithiated Li2S cathode at room temperature shows stable cycling performance with a 600 mAh g−1 capacity after 100 cycles at 0.1 C-rate and high capacity of 500 mAh g−1 at 2 C-rate. This simple on-site pre-lithiation method at room temperature is demonstrated to be applicable for the in-situ pre-lithiation in a Li metal free battery.

KW - CNT

KW - Li-S battery

KW - Lithium naphthalenide

KW - Pre-lithiation

KW - Room temperature

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