DataVXSmallPaper
journal article·2024-11

“Lasagna”‐Structured SnS‐TaS2 Misfit Layered Sulfide for Capacitive and Robust Sodium‐Ion Storage

Youtan Pan, Wen Chen, Chong Zheng, Zhuoran Lv, Mengjuan Zhong, Keyan Hu, Fuqiang Huang, Wujie Dong

Small· Volume 20· Issue 44
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Source abstract

Abstract

Abstract Stannous sulfide (SnS), a conversion‐alloying type anode for sodium‐ion batteries, is strong Na+ storage activity, a low voltage platform, and high theoretical capacity. However, grain pulverization induced by intolerable volume change and phase aggregation causes quick capacity degradation and unsatisfactory rate capability. Herein, a novel “lasagna” strategy is developed by embedding a SnS layer into the interlayer of an electrochemically robust and electron‐active TaS2 to form a misfit layered (SnS)1.15TaS2 superlattice. For Na+ storage, the rationally designed (SnS)1.15TaS2 anode exhibits high specific capacity, excellent rate capability, and robust cycling stability (729 mAh cm−3 at 15 C after 2000 cycles). Moreover, the as‐assembled (SnS)1.15TaS2 || Na3V2(PO4)3 full cells achieve robust and fast Na+ storage performance with ≈100% capacity retention after 650 cycles at 15 C, which also demonstrates good low‐temperature performance at −20 °C with a capacity retention of 75% and 2 C high‐rate charge/discharge ability.
Source: crossref · Quality: baseline

Research context

Energy storageMetals & alloys

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 Mechanical and Electrical Engineering Jingdezhen Ceramic University Jingdezhen 333403 China

Department of Chemistry and Biochemistry Northern Illinois University DeKalb IL 60115 USA

State Key Lab of Metal Matrix Composites School of Materials Science and Engineering Shanghai Jiao Tong University Dongchuan Road 800 Shanghai 200240 China

State Key Laboratory of High Performance Ceramics and Superfine Microstructures Shanghai Institute of Ceramics Chinese Academy of Sciences Shanghai 200050 China

Future Materials Innovation Center Zhang jiang Institute for Advanced Study Shanghai Jiao Tong University Shanghai 201203 China

Funding

National Natural Science Foundation of China · Science and Technology Commission of Shanghai Municipality · Graduate Innovative Special Fund Projects of Jiangxi Province · China Postdoctoral Science Foundation · Natural Science Foundation of Jiangxi Province · Jingdezhen Science and Technology Bureau

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