DataVXACS Applied Materials & InterfacesPaper
journal article·2024-07-10

Suppressing the Shuttle Effect via Polypyrrole-Coated Te Nanotubes for Advanced Na–Te Batteries

Mihyun Kim, Hyosik Kim, Won Kim, Song Yeul Lee, Yong Il Park, Yun A. Shim, Tae-Yeol Jeon, Jae-Yup Kim, Chi-Yeong Ahn, Hyungwon Shim, Ji Eun Lee, Seung-Ho Yu

ACS Applied Materials & Interfaces· Volume 16· Issue 27
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Source abstract

Abstract

There is a growing demand for research and development of advanced energy storage devices with high energy density utilizing earth-abundant metal anodes such as sodium metal. Tellurium, a member of the chalcogen group, stands out as a promising cathode material due to its remarkable volumetric capacity, comparable to sulfur, and significantly high electrical conductivity. However, critical issues arise from soluble sodium polytellurides, leading to the shuttle effect. This phenomenon can result in the loss of active materials, self-discharge, and anode instability. Here, we introduce polypyrrole-coated tellurium nanotubes as the cathode materials, where polypyrrole plays a crucial role in preventing the dissolution of polytellurides, as confirmed through operando optical microscopy. The polypyrrole-coated tellurium nanotubes exhibited an outstanding rate performance and long cycle stability in sodium–tellurium batteries. These research findings are anticipated to bolster the viability of polypyrrole-coated tellurium nanotubes as promising cathode materials, making a substantial contribution to the commercialization of sodium-ion battery technology.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterials

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · 2D Materials and Applications

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

Affiliations

Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea

School of Chemical Engineering, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea

Pohang Accelerator Laboratory, POSTECH, 80 Jigokro 127-beongil, Nam-gu, Pohang 37673, Republic of Korea

Department of Chemical Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin 16890, Republic of Korea

Alternative Fuels and Power System Research Center, Korea Research Institute of Ships and Ocean Engineering (KRISO), 32 Yuseong-daero, Yuseong-gu, Daejeon 34103, Republic of Korea

Department of Green Mobility, Korean National University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea

Department of Battery-Smart Factory, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea

Funding

National Research Foundation of Korea · Korea Institute of Marine Science and Technology promotion

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