DataVXACS Applied Materials & InterfacesPaper
journal article·2023-02-08

Bi-Morphological Form of SiO2 on a Separator for Modulating Li-Ion Solvation and Self-Scavenging of Li Dendrites in Li Metal Batteries

Bo Keun Park, Hyun-Seung Kim, Sang A Han, Han Jun Leem, Taehee Kim, Yong Gab Kwon, Jin Hyeok Yang, Junyoung Mun, Jisang Yu, Min-Sik Park, Jung Ho Kim, Ki Jae Kim

ACS Applied Materials & Interfaces· Volume 15· Issue 5
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Source abstract

Abstract

The lithium (Li) metal anode is highly desirable for high-energy density batteries. During prolonged Li plating–stripping, however, dendritic Li formation and growth are probabilistically high, allowing physical contact between the two electrodes, which results in a cell short-circuit. Engineering the separator is a promising and facile way to suppress dendritic growth. When a conventional coating approach is applied, it usually sacrifices the bare separator structure and severely increases the thickness, ultimately decreasing the volumetric density. Herein, we introduce dielectric silicon oxide with the feature of bi-morphological form, i.e., backbone-covered and backbone-anchored, onto the conventional polyethylene separator without any volumetric change. These functionally vary the Li + transference number and the ionic conductivity so as to modulate Li-ion solvation and self-scavenging of Li dendrites. The proposed separator paves the way to maximizing the full cell performance of Li/NCM622 toward practical application.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storage

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Advanced Battery Technologies Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Energy Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul05029, Republic of Korea

Advanced Batteries Research Center, Korea Electronics Technology Institute, 25, Saenari-ro, Seongnam13509, Republic of Korea

Institute for Superconducting and Electronic Materials (ISEM), Australian Institute for Innovative Materials (AIIM), University of Wollongong, North Wollongong2500, NSW, Australia

Department of Advanced Materials Engineering for Information and Electronics, Integrated Education Institute for Frontier Science & Technology (BK21 Four), Kyung Hee University, 1732 Deogyeong-daero, Giheung-gu, Yongin17104, Republic of Korea

School of Advanced Materials Science & Engineering, Sungkyunkwan University, Suwon16419, Gyeonggi-do, Republic of Korea

Department of Energy Science, Sungkyunkwan University, Suwon16419, Gyeonggi-do, Republic of Korea

Funding

National Research Foundation of Korea

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