DataVXACS Applied Energy MaterialsPaper
journal article·2023-04-10

Highly Thermally Stable, Highly Electrolyte-Wettable Hydroxyapatite/Cellulose Nanofiber Hybrid Separators for Lithium-Ion Batteries

Yi Liu, Chunxing Li, Chao Li, Zhenye Liang, Xueshan Hu, Hao Liu, Ze Zhang, Meng Cui, Gang Chen, Jiayu Wan, Xiangwu Zhang, Jinsong Tao

ACS Applied Energy Materials· Volume 6· Issue 7
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Source abstract

Abstract

Separators have an important influence on the safety and performance of lithium-ion batteries (LIBs). However, traditional polyolefin-based separators suffer from poor thermal stability and weak electrolyte wettability. Here, by using hydroxyapatite (HAP) and cellulose nanofibers (CNFs) as raw materials, we fabricated a unique HAP/CNF hybrid separator. The separators exhibit excellent thermal properties, with high thermal stability (up to 250 °C) and outstanding flame retardancy. The separators also demonstrate excellent electrolyte wettability. Compared to polypropylene (PP) separators, the HAP/CNF separators show a smaller contact angle with electrolytes, 17.2° for HAP/CNF and 45.5° for PP. Meanwhile, the HAP/CNF separators illustrate an excellent smoothness of 68.0 nm. In addition, the batteries assembled with the hybrid separators display a better performance compared with the batteries assembled with commercial PP separators. The raw materials are green, and the fabrication processes are free of organic solvents. We envision that the HAP/CNF hybrid separator could be a promising separator candidate for next-generation high-safety and high-performance LIBs.
Source: openalex_inverted_index · Quality: baseline

Research context

Energy storageNanomaterials

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

State Key Lab of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China

SUSTech Energy Institute for Carbon Neutrality, Southern University of Science and Technology, Shenzhen 518055, China

Department of Mechanical and Energy Engineering, Southern University of Science and Technology, Shenzhen 518055, China

Fiber and Polymer Science Program, Department of Textile Engineering, Chemistry and Science, Wilson College of Textiles, North Carolina State University, Raleigh, North Carolina 27695-8301, United States

Funding

Ministry of Science and Technology of the People's Republic of China · Science, Technology and Innovation Commission of Shenzhen Municipality · Southern University of Science and Technology · National Natural Science Foundation of China · Bengbu-SCUT Research Center for Advanced Manufacturing of Biomaterials · Guangzhou City Industrial Science and Technology Projects · Centers for Mechanical Engineering Research and Education at MIT and SUSTech · Guangdong Basic and Applied Basic Research Foundation · Guangxi China Tobacco Industry Co., Ltd

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