DataVXACS Materials LettersPaper
journal article·2021-04-05

Spindle Single-Crystalline Rutile TiO2 with Excellent Cyclability for Low-Cost Li-Storage Materials

Hiroyuki Usui, Yasuhiro Domi, Shinya Ohnishi, Noriyuki Takamori, Shin-ichiro Izaki, Naoki Morimoto, Kazumi Yamanaka, Keita Kobayashi, Hiroki Sakaguchi

ACS Materials Letters· Volume 3· Issue 4
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Source abstract

Abstract

We investigated the Li storage properties of spindle single-crystalline rutile TiO2 fine particles synthesized by a large-scale sulfate process. Their anode properties were compared with those of polycrystalline rutile TiO2 particles. An increase in the degree of single-crystal formation improved the charge–discharge capacity and initial Coulombic efficiency. In situ X-ray diffraction and transmission electron microscopic observation demonstrated the structural integrity of the spindle particles during the charge–discharge reactions. These results concluded that the degree is a critical parameter determining the anode performance of rutile TiO2. The anode performance was further enhanced by doping Nb into the spindle TiO2 particles. These findings suggest that single-crystalline rutile TiO2 particles are very promising low-cost and high-performance Li storage materials.
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Research context

Energy storage

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

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

Affiliations

Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, 4-101 minami, Koyama-cho, Tottori 680-8552, Japan

Center for Research on Green Sustainable Chemistry, Tottori University, 4-101 minami, Koyama-cho, Tottori 680-8552, Japan

Course of Chemistry and Biotechnology, Department of Engineering, Graduate School of Sustainability Science, Tottori University, 4-101 minami, Koyama-cho, Tottori 680-8552, Japan

Corporate Research Laboratories, Research & Development Division, Sakai Chemical Industry Co., Ltd., 5-1 Ebisujima-cho, Sakai-ku, Sakai, Osaka 590-0985, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Japan Association for Chemical Innovation · Japan Society for the Promotion of Science

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