Achieving Fast and Efficient K+ Intercalation on Ultrathin Graphene Electrodes Modified by a Li+ Based Solid-Electrolyte Interphase

Jingshu Hui, Noah B. Schorr, Srimanta Pakhira, Zihan Qu, Jose L. Mendoza-Cortes, Joaquin Rodriguez Lopez

Research output: Contribution to journalArticle

Abstract

Advancing beyond Li-ion batteries requires translating the beneficial characteristics of Li+ electrodes to attractive, yet incipient, candidates such as those based on K+ intercalation. Here, we use ultrathin few-layer graphene (FLG) electrodes as a model interface to show a dramatic enhancement of K+ intercalation performance through a simple conditioning of the solid-electrolyte interphase (SEI) in a Li+ containing electrolyte. Unlike the substantial plating occurring in K+ containing electrolytes, we found that a Li+ based SEI enabled efficient K+ intercalation with discrete staging-type phase transitions observed via cyclic voltammetry at scan rates up to 100 mVs-1 and confirmed as ion-intercalation processes through in situ Raman spectroscopy. The resulting interface yielded fast charge-discharge rates up to ∼360C (1C is fully discharge in 1 h) and remarkable long-term cycling stability at 10C for 1000 cycles. This SEI promoted the transport of K+ as verified via mass spectrometric depth profiling. This work introduces a convenient strategy for improving the performance of ion intercalation electrodes toward a practical K-ion battery and FLG electrodes as a powerful analytical platform for evaluating fundamental aspects of ion intercalation.

Original languageEnglish (US)
Pages (from-to)13599-13603
Number of pages5
JournalJournal of the American Chemical Society
Volume140
Issue number42
DOIs
StatePublished - Oct 24 2018

Fingerprint

Graphite
Interphase
Solid electrolytes
Intercalation
electrolyte
Graphene
Electrolytes
Electrodes
electrode
Ions
ion
Raman Spectrum Analysis
Phase Transition
Raman spectroscopy
phase transition
Depth profiling
conditioning
Plating
Cyclic voltammetry
Phase transitions

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Achieving Fast and Efficient K+ Intercalation on Ultrathin Graphene Electrodes Modified by a Li+ Based Solid-Electrolyte Interphase. / Hui, Jingshu; Schorr, Noah B.; Pakhira, Srimanta; Qu, Zihan; Mendoza-Cortes, Jose L.; Rodriguez Lopez, Joaquin.

In: Journal of the American Chemical Society, Vol. 140, No. 42, 24.10.2018, p. 13599-13603.

Research output: Contribution to journalArticle

Hui, Jingshu ; Schorr, Noah B. ; Pakhira, Srimanta ; Qu, Zihan ; Mendoza-Cortes, Jose L. ; Rodriguez Lopez, Joaquin. / Achieving Fast and Efficient K+ Intercalation on Ultrathin Graphene Electrodes Modified by a Li+ Based Solid-Electrolyte Interphase. In: Journal of the American Chemical Society. 2018 ; Vol. 140, No. 42. pp. 13599-13603.
@article{282d9dd67dee4fb7a9f8d674f07e6942,
title = "Achieving Fast and Efficient K+ Intercalation on Ultrathin Graphene Electrodes Modified by a Li+ Based Solid-Electrolyte Interphase",
abstract = "Advancing beyond Li-ion batteries requires translating the beneficial characteristics of Li+ electrodes to attractive, yet incipient, candidates such as those based on K+ intercalation. Here, we use ultrathin few-layer graphene (FLG) electrodes as a model interface to show a dramatic enhancement of K+ intercalation performance through a simple conditioning of the solid-electrolyte interphase (SEI) in a Li+ containing electrolyte. Unlike the substantial plating occurring in K+ containing electrolytes, we found that a Li+ based SEI enabled efficient K+ intercalation with discrete staging-type phase transitions observed via cyclic voltammetry at scan rates up to 100 mVs-1 and confirmed as ion-intercalation processes through in situ Raman spectroscopy. The resulting interface yielded fast charge-discharge rates up to ∼360C (1C is fully discharge in 1 h) and remarkable long-term cycling stability at 10C for 1000 cycles. This SEI promoted the transport of K+ as verified via mass spectrometric depth profiling. This work introduces a convenient strategy for improving the performance of ion intercalation electrodes toward a practical K-ion battery and FLG electrodes as a powerful analytical platform for evaluating fundamental aspects of ion intercalation.",
author = "Jingshu Hui and Schorr, {Noah B.} and Srimanta Pakhira and Zihan Qu and Mendoza-Cortes, {Jose L.} and {Rodriguez Lopez}, Joaquin",
year = "2018",
month = "10",
day = "24",
doi = "10.1021/jacs.8b08907",
language = "English (US)",
volume = "140",
pages = "13599--13603",
journal = "Journal of the American Chemical Society",
issn = "0002-7863",
publisher = "American Chemical Society",
number = "42",

}

TY - JOUR

T1 - Achieving Fast and Efficient K+ Intercalation on Ultrathin Graphene Electrodes Modified by a Li+ Based Solid-Electrolyte Interphase

AU - Hui, Jingshu

AU - Schorr, Noah B.

AU - Pakhira, Srimanta

AU - Qu, Zihan

AU - Mendoza-Cortes, Jose L.

AU - Rodriguez Lopez, Joaquin

PY - 2018/10/24

Y1 - 2018/10/24

N2 - Advancing beyond Li-ion batteries requires translating the beneficial characteristics of Li+ electrodes to attractive, yet incipient, candidates such as those based on K+ intercalation. Here, we use ultrathin few-layer graphene (FLG) electrodes as a model interface to show a dramatic enhancement of K+ intercalation performance through a simple conditioning of the solid-electrolyte interphase (SEI) in a Li+ containing electrolyte. Unlike the substantial plating occurring in K+ containing electrolytes, we found that a Li+ based SEI enabled efficient K+ intercalation with discrete staging-type phase transitions observed via cyclic voltammetry at scan rates up to 100 mVs-1 and confirmed as ion-intercalation processes through in situ Raman spectroscopy. The resulting interface yielded fast charge-discharge rates up to ∼360C (1C is fully discharge in 1 h) and remarkable long-term cycling stability at 10C for 1000 cycles. This SEI promoted the transport of K+ as verified via mass spectrometric depth profiling. This work introduces a convenient strategy for improving the performance of ion intercalation electrodes toward a practical K-ion battery and FLG electrodes as a powerful analytical platform for evaluating fundamental aspects of ion intercalation.

AB - Advancing beyond Li-ion batteries requires translating the beneficial characteristics of Li+ electrodes to attractive, yet incipient, candidates such as those based on K+ intercalation. Here, we use ultrathin few-layer graphene (FLG) electrodes as a model interface to show a dramatic enhancement of K+ intercalation performance through a simple conditioning of the solid-electrolyte interphase (SEI) in a Li+ containing electrolyte. Unlike the substantial plating occurring in K+ containing electrolytes, we found that a Li+ based SEI enabled efficient K+ intercalation with discrete staging-type phase transitions observed via cyclic voltammetry at scan rates up to 100 mVs-1 and confirmed as ion-intercalation processes through in situ Raman spectroscopy. The resulting interface yielded fast charge-discharge rates up to ∼360C (1C is fully discharge in 1 h) and remarkable long-term cycling stability at 10C for 1000 cycles. This SEI promoted the transport of K+ as verified via mass spectrometric depth profiling. This work introduces a convenient strategy for improving the performance of ion intercalation electrodes toward a practical K-ion battery and FLG electrodes as a powerful analytical platform for evaluating fundamental aspects of ion intercalation.

UR - http://www.scopus.com/inward/record.url?scp=85055190121&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055190121&partnerID=8YFLogxK

U2 - 10.1021/jacs.8b08907

DO - 10.1021/jacs.8b08907

M3 - Article

C2 - 30299954

AN - SCOPUS:85055190121

VL - 140

SP - 13599

EP - 13603

JO - Journal of the American Chemical Society

JF - Journal of the American Chemical Society

SN - 0002-7863

IS - 42

ER -