BROWSE

Related Researcher

Author's Photo

Seo, Dong-Hwa
Computational Energy Materials Science Lab
Research Interests
  • 본 연구실에서는 제일원리 (first-principles) 전산모사 기법을 통해 이차전지용 전극 소재와 고체 전해질 소재에 대해 원자 단위에서 깊이 있게 이해하고 이를 바탕으로 신규 소재를 개발하고 기존 소재의 성능 향상시키는 연구를 진행하고 있습니다. 또한 인공지능 (artificial intelligence)과 기계학습 (Machine learning), 로봇공학 (robotics)을 조합하여 자동 합성/분석을 통한 재료 개발에 대한 연구를 진행하고 있습니다.

ITEM VIEW & DOWNLOAD

Investigation of Potassium Storage in Layered P3-Type K0.5MnO2 Cathode

Cited 0 times inthomson ciCited 0 times inthomson ci
Title
Investigation of Potassium Storage in Layered P3-Type K0.5MnO2 Cathode
Author
Kim, HaegyeomSeo, Dong-HwaKim, Jae ChulBo, Shou-HangLiu, LeiShi, TanCeder, Gerbrand
Issue Date
2017-10
Publisher
WILEY-V C H VERLAG GMBH
Citation
ADVANCED MATERIALS, v.29, no.37, pp.1702480
Abstract
Novel and low-cost batteries are of considerable interest for application in large-scale energy storage systems, for which the cost per cycle becomes critical. Here, this study proposes K0.5MnO2 as a potential cathode material for K-ion batteries as an alternative to Li technology. K0.5MnO2 has a P3-type layered structure and delivers a reversible specific capacity of approximate to 100 mAh g(-1) with good capacity retention. In situ X-ray diffraction analysis reveals that the material undergoes a reversible phase transition upon K extraction and insertion. In addition, first-principles calculations indicate that this phase transition is driven by the relative phase stability of different oxygen stackings with respect to the K content.
URI
https://scholarworks.unist.ac.kr/handle/201301/30521
URL
https://onlinelibrary.wiley.com/doi/full/10.1002/adma.201702480
DOI
10.1002/adma.201702480
ISSN
0935-9648
Appears in Collections:
ECHE_Journal Papers
Files in This Item:
There are no files associated with this item.

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU