DataVXACS Energy LettersPaper
journal article·2022-01-14

Multifunctional Interface for High-Rate and Long-Durable Garnet-Type Solid Electrolyte in Lithium Metal Batteries

Kyeongsu Lee, Sangwook Han, Jeongmin Lee, Sunyoung Lee, Jongmin Kim, Youngmin Ko, Sewon Kim, Kyungho Yoon, Jun-Hyuk Song, Joo Hyeon Noh, Kisuk Kang

ACS Energy Letters· Volume 7· Issue 1
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Source abstract

Abstract

Lithium dendrite growth in solid electrolytes is one of the major obstacles to the commercialization of solid-state batteries based on garnet-type solid electrolytes. Herein, we propose a strategy that can simultaneously resolve both the interface and electronic conductivity issues via a simple one-step procedure that provides multilayer protection at low temperature. We take advantage of the facile chemical conversion reaction, showing the wet-coated SnF2 particles on the solid electrolyte effectively produces a multifunctional interface composed of LiF and Li–Sn alloy upon contact with lithium. We demonstrate the multifunctional interface enables the remarkably high critical current density up to 2.4 mA cm–2 at 25 °C and the stable galvanostatic cycling for over 1000 h at 0.5 mA cm–2 in the lithium symmetric cell. Moreover, the full cell delivers a robust cycle life of more than 600 cycles at 1.0 mA cm–2, which is the highest performance at room temperature reported to date.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageMetals & alloys

OpenAlex topics: Advanced Battery Materials and Technologies · Advancements in Battery Materials · Thermal Expansion and Ionic Conductivity

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

Affiliations

Department of Materials Science and Engineering, Research Institute of Advanced Materials (RIAM), Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea

Analysis group, Samsung SDI Co. Ltd., 130 Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-803, Republic of Korea

Next Generation Battery Lab, Samsung Advanced Institute of Technology, 130, Samsung-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 443-803, Republic of Korea

Center for Nanoparticle Research, Institute of Basic Science, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea

Institute of Engineering Research, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea

School of Chemical and Bioengineering, College of Engineering, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 151-742, Republic of Korea

Funding

Samsung Advanced Institute of Technology

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