DataVXACS Applied Materials & InterfacesPaper
journal article·2021-09-15

A Monolithic Solid-State Sodium–Sulfur Battery with Al-Doped Na3.4Zr2(Si0.8P0.2O4)3 Electrolyte

Liang Lu, Yao Lu, José Antonio Alonso, Carlos Alberto López, Maria Teresa Fernández-Díaz, Bingsuo Zou, Chunwen Sun

ACS Applied Materials & Interfaces· Volume 13· Issue 36
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Source abstract

Abstract

The limit of the energy density and increasing security issues on sodium-ion batteries (SIBs) impede their further development. Solid-state sodium metal batteries are potential candidates to replace the present SIBs. However, low ionic conductivity and poor interface contact hinder their progress. In this work, the impact of Al doping on the crystalline structure and ionic transport in Na3.4Zr2(Si0.8P0.2O4)3 was studied by neutron powder diffraction. The ionic conductivity of Na3.5Zr1.9Al0.1Si2.4P0.6O12 achieves 4.43 × 10–3 S cm–1 at 50 °C. The polarization voltage of the Na||Na symmetric battery is about 40 mV after cycling for more than 1600 h. Moreover, a solid-state sodium–sulfur battery with a monolithic structure was constructed to alleviate the interfacial resistance problems. Its specific discharge capacity can still keep 300 mA h g–1 after 480 cycles at 300 mA g–1. The work provides a promising strategy to design solid-state sodium–sulfur batteries with high performances.
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Research context

Energy storage

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

School of Physical Science and Technology, Guangxi University, Nanning 530004, P. R. China

School of Chemical & Environmental Engineering, China University of Mining and Technology-Beijing, Beijing 100083, P. R. China

CAS Center for Excellence in Nanoscience, Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing 100083, P. R. China

Instituto de Ciencia de los Materiales de Madrid, CSIC, E-28049 Cantoblanco-Madrid, Spain

INTEQUI (UNSL, CONICET) and Facultad de Química, Bioquímica y Farmacia, UNSL, Chacabuco y Pedernera, San Luis 5700, Argentina

Institut Laue Langevin, BP 156X, Grenoble F-38042, France

Guangxi Key Lab of Processing for Nonferrous Metals and Featured Materials and Key Lab of New Processing Technology for Nonferrous Metals and Materials, Ministry of Education; School of Resources, Environments and Materials, Guangxi University, Nanning 530004, P. R. China

Funding

Ministerio de Ciencia e Innovaci??n · Universidad Nacional de San Luis · Agencia Nacional de Promoci??n Cient??fica y Tecnol??gica · China University of Mining and Technology · National Natural Science Foundation of China · Beijing National Laboratory for Condensed Matter Physics

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