Interfacial Engineering of Bifunctional Niobium (Ⅴ)-Based Heterostructure Nanosheet Toward High Efficiency Lean- Electrolyte Lithium-Sulfur Full Batteries

Shi Haodong; Qin Jieqiong; Lu Pengfei; Dong Cong; He Jian; Chou Xiujian; Das Pratteek; Wang Jiemin; Zhang Liangzhu; Wu Zhong-Shuai

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Interfacial Engineering of Bifunctional Niobium (Ⅴ)-Based Heterostructure Nanosheet Toward High Efficiency Lean- Electrolyte Lithium-Sulfur Full Batteries

机译：基于双功能性铌（Ⅵ）的界面工程 - 基于高效瘦电解质锂 - 硫磺全电池的异质结构纳米片

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摘要

High-efficiency lithium-sulfur (Li-S) batteries depend on an advanced electrode structure that can attain high sulfur utilization at lean-electrolyte conditions and minimum amount of lithium. Herein, a twinborn holey Nb4N5-Nb2O5 heterostructure is designed as a dual-functional host for both redox-kinetics-accelerated sulfur cathode and dendrite-inhibited lithium anode simultaneously for long-cycling and lean-electrolyte Li-S full batteries. Benefiting from the accelerative polysulfides anchoring-diffusion-converting efficiency of Nb4N5-Nb2O5, polysulfide-shutting is significantly alleviated. Meanwhile, the lithiophilic nature of holey Nb4N5-Nb2O5 is applied as an ion-redistributor for homogeneous Li-ion deposition. Taking advantage of these merits, the Li-S full batteries present excellent electrochemical properties, including a minimum capacity decay rate of 0.025% per cycle, and a high areal capacity of 5.0 mAh cm(-2) at sulfur loading of 6.9 mg cm(-2), corresponding to negative to positive capacity ratio of 2.4:1 and electrolyte to sulfur ratio of 5.1 mu L mg(-1). Therefore, this work paves a new avenue for boosting high-performances Li-S batteries toward practical applications.

机译：高效锂 - 硫（LI-S）电池取决于能够在瘦电解质条件和最小锂的锂电池中获得高硫磺利用的先进电极结构。在此，对于氧化还原动力学 - 加速的硫阴极和枝晶抑制锂阳极的双官能宿主同时设计为长循环和瘦电解质Li-S全电池。从加速多硫化物的锚固 - 扩散转换效率受益于NB4N5-NB2O5，多硫化物关闭显着缓解。同时，孔的NB4N5-NB2O5的锂硅基醇本性用作离子再分配的用于均相锂离子沉积。利用这些优点，LI-S全电池具有优异的电化学性能，包括每循环的最小容量衰减率为0.025％，硫载荷为6.9mg cm（ -2），对应于负至阳性容量比为2.4：1，电解质与硫比为5.1μlmg（-1）。因此，这项工作铺平了新的途径，用于推动高性能LI-S电池，用于实际应用。

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来源
《Advanced Functional Materials》 |2021年第28期|2102314.1-2102314.10|共10页
作者
Shi Haodong; Qin Jieqiong; Lu Pengfei; Dong Cong; He Jian; Chou Xiujian; Das Pratteek; Wang Jiemin; Zhang Liangzhu; Wu Zhong-Shuai;
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Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China|Univ Chinese Acad Sci 19 A Yuquan Rd Beijing 100049 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China|Henan Agr Univ Coll Sci 63 Agr Rd Zhengzhou 450002 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China|Univ Chinese Acad Sci 19 A Yuquan Rd Beijing 100049 Peoples R China;

North Univ China Sch Instrument & Elect Taiyuan 030051 Peoples R China;

North Univ China Sch Instrument & Elect Taiyuan 030051 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China|Univ Chinese Acad Sci 19 A Yuquan Rd Beijing 100049 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China;

Chinese Acad Sci Dalian Inst Chem Phys State Key Lab Catalysis 457 Zhongshan Rd Dalian 116023 Peoples R China|Chinese Acad Sci Dalian Inst Chem Phys Dalian Natl Lab Clean Energy 457 Zhongshan Rd Dalian 116023 Peoples R China;

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正文语种 eng
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关键词
2D heterostructures; holey nanosheets; lithium dendrites; lithium-sulfur batteries; polysulfide electrocatalysis;

机译：2D异质结构;HOLENY NANOSHEELS;锂枝晶;锂 - 硫磺电池;多硫化物电催化;

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2. Solid/Solid Interfacial Architecturing of Solid Polymer Electrolyte-Based All-Solid-State Lithium-Sulfur Batteries by Atomic Layer Deposition [J] . Zengjie Fan, Bing Ding, Tengfei Zhang, Small . 2019,第46期

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3. A High-Efficiency Sulfur/Carbon Composite Based on 3D Graphene Nanosheet@Carbon Nanotube Matrix as Cathode for Lithium-Sulfur Battery [J] . Zhang Ze, Kong Ling-Long, Liu Sheng, Advanced energy materials . 2017,第11期

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4. Advancing Low Temperature Molten Sodium Batteries By Interfacial Engineering of Ceramic Electrolytes [C] . Martha M. Gross, Amanda Peretti, Leo J. Small, Meeting of the Electrochemical Society;International Meeting on Chemical Sensors . 2020

机译：通过陶瓷电解质的界面工程推进低温熔融钠电池
5. Advanced Electrodes and Electrolytes for Long-Lived and High-Performance Lithium-Sulfur Batteries [D] . ?Gopalakrishnan, Deepesh 2020

机译：用于长寿命和高性能锂 - 硫磺电池的先进电极和电解质
6. Self-supporting sulfur cathodes enabled by two-dimensional carbon yolk-shell nanosheets for high-energy-density lithium-sulfur batteries [O] . Fei Pei, Lele Lin, Daohui Ou, -1

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7. Lithium-Sulfur Batteries: Nitrogen-Doped Aligned Carbon Nanotube/Graphene Sandwiches: Facile Catalytic Growth on Bifunctional Natural Catalysts and Their Applications as Scaffolds for High-Rate Lithium-Sulfur Batteries (Adv. Mater. 35/2014) [O] . Cheng Tang, Qiang Zhang, Meng-Qiang Zhao, 2014

机译：锂 - 硫磺电池：氮气掺杂的碳纳米管/石墨烯三明治：双官能天然催化剂的催化生长及其作为高速锂 - 硫电池的支架（ADV。35/2014）

Interfacial Engineering of Bifunctional Niobium (Ⅴ)-Based Heterostructure Nanosheet Toward High Efficiency Lean- Electrolyte Lithium-Sulfur Full Batteries

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