journal article·2019-12-23

Nanoscale Morphology Control of Na-Rich Prussian Blue Cathode Materials for Sodium Ion Batteries with Good Thermal Stability

Yuncai Chen, Haw Jiunn Woo, Muhammad Rizwan, Rosiyah binti Yahya, Dehu Cui, Dan Luo, Lang Chen, Abdul Kariem Mohd Arof, Fei Wang

ACS Applied Energy Materials· Volume 2· Issue 12
Publisher page

Abstract

Sodium-ion batteries (SIBs) are normally investigated at room temperature (RT). However, the application of electrical vehicles (EVs) may work at high/low temperatures in a harsh environment. Herein, Na-rich Prussian blue (PB) is synthesized by controlling the Na+ ion concentration during the synthesis process. TGA, XRD, IR, and SEM are used to investigate the transition of the nanoscale structure and the surface morphology of PB at various Na contents. The electrochemical properties have been investigated at RT, 40 °C, 60 °C, and the high temperature of 80 °C. PB-4M exhibits a specific capacity of 130 mAh/g at RT and 120 mAh/g at 80 °C. At 80 °C, PB-4M can still deliver a reversable specific capacity of 57 mAh/g at 2 C after 500 charge–discharge cycles, which makes it possible to utilize PB as a commercial cathode in future EVs at high temperature.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Supercapacitor Materials and Fabrication

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

Affiliations

School of Microelectronics, Southern University of Science and Technology, Shenzhen 518055, China

Department of Electrical and Electronic Engineering, Southern University of Science and Technology, Shenzhen 518055, China

Centre for Ionics University Malaya, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia

Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China

GaN Device Engineering Technology Research Center of Guangdong, Southern University of Science and Technology, Shenzhen 518055, China

Shenzhen Key Laboratory of third Generation Semiconductor Devices, Shenzhen 518055, China

Funding

Ministry of Higher Education, Malaysia · Shenzhen Science and Technology Innovation Commission · Universiti Malaya · Natural Science Foundation of Guangdong Province · Guangdong Special Support Program

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