Nitrogen Doping Improves the Immobilization and Catalytic Effects of Co_9S_8 in Li-S Batteries

Liu Yuping; Ma Shuangying; Liu Lifeng; Koch Julian; Rosebrock Marina; Li Taoran; Bettels Frederik; He Tao; Pfnuer Herbert; Bigall Nadja C.; Feldhoff Armin; Ding Fei; Zhang Lin

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Nitrogen Doping Improves the Immobilization and Catalytic Effects of Co_9S_8 in Li-S Batteries

机译：氮掺杂改善了CO_9S_8在LI-S电池中的固定和催化作用

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Several critical issues, such as the shuttling effect and the sluggish reaction kinetics, exist in the design of high-performance lithium-sulfur (Li-S) batteries. Here, it is reported that nitrogen doping can simultaneously and significantly improve both the immobilization and catalyzation effects of Co(9)S(8)nanoparticles in Li-S batteries. Combining the theoretical calculations with experimental investigations, it is revealed that nitrogen atoms can increase the binding energies between LiPSs and Co9S8, and as well as alleviate the sluggish kinetics of Li-S chemistry in the Li(2)S(6)cathode. The same effects are also observed when adding N-Co(9)S(8)nanoparticles into the commercial Li2S cathode (which has various intrinsic advantages, but unfortunately a high overpotential). A remarkable improvement in the battery performances in both cases is observed. The work brings heteroatom-doped Co(9)S(8)to the attention of designing high-performance Li-S batteries. A fundamental understanding of the inhibition of LiPSs shuttle and the catalytic effect of Li2S in the newly developed system may encourage more effort along this interesting direction.

机译：在高性能锂 - 硫（LI-S）电池的设计中，存在几种关键问题，例如穿梭效果和缓慢的反应动力学。这里，据报道，氮掺杂可以同时和显着改善LI-S电池中CO（9）S（8）纳米颗粒的固定化和催化作用。将理论计算与实验研究相结合，揭示了氮原子可以增加嘴唇和CO9S8之间的结合能量，以及缓解Li-S化学的缓慢动力学在Li（2）S（6）阴极中。当将N-CO（9）S（8）纳米颗粒添加到商用LI2S阴极（具有各种固有的优点时，也观察到相同的效果（但不幸的是，不幸的是高调）。观察到两种情况下电池性能的显着改善。该作品将杂原子掺杂的CO（9）S（8）带到设计高性能LI-S电池的注意力。对嘴唇梭住的抑制和LI2S在新发达的系统中的催化作用的根本理解可能会沿着这种有趣的方向鼓励更多的努力。

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来源
《Advanced Functional Materials》 |2020年第32期|2002462.1-2002462.10|共10页
作者
Liu Yuping; Ma Shuangying; Liu Lifeng; Koch Julian; Rosebrock Marina; Li Taoran; Bettels Frederik; He Tao; Pfnuer Herbert; Bigall Nadja C.; Feldhoff Armin; Ding Fei; Zhang Lin;
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作者单位

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Univ Stuttgart Inst Theoret Chem Pfaffenwaldring 55 D-70569 Stuttgart Germany;

Int Iberian Nanotechnol Lab INL Ave Mestre Jose Veiga P-4715330 Braga Portugal;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany;

Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany|Leibniz Univ Hannover Inst Phys Chem & Electrochem Callinstr 3a D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany|Leibniz Univ Hannover Inst Phys Chem & Electrochem Callinstr 3a D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Phys Chem & Electrochem Callinstr 3a D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

Leibniz Univ Hannover Inst Solid State Phys Appelstr 2 D-30167 Hannover Germany|Leibniz Univ Hannover Lab Nano & Quantum Engn LNQE Schneiderberg 39 D-30167 Hannover Germany;

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正文语种 eng
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关键词
adsorption; catalysis; Li-S batteries; lithium polysulfides; N-Co(9)S(8)nanoparticles;

机译：吸附;催化;LI-S电池;锂多硫化物;N-CO（9）S（8）纳米颗粒;

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1. Stabilizing sulfur cathodes using nitrogen-doped graphene as a chemical immobilizer for Li-S batteries [J] . Li Lu, Zhou Guangmin, Yin Lichang, Carbon: An International Journal Sponsored by the American Carbon Society . 2016,第Null期

机译：使用氮掺杂石墨烯作为Li-S电池的化学固定剂来稳定硫阴极
2. Stabilizing sulfur cathodes using nitrogen-doped graphene as a chemical immobilizer for Li-S batteries [J] . Li Lu, Zhou Guangmin, Yin Lichang, Carbon: An International Journal Sponsored by the American Carbon Society . 2016,第Null期

机译：使用氮掺杂石墨烯作为Li-S电池的化学固定剂来稳定硫阴极
3. Combination of Nitrogen-Doped Graphene with MoS2 Nanoclusters for Improved Li-S Battery Cathode: Synthetic Effect between 2D Components [J] . Li Zhongtao, Deng Shenzhen, Xu Rongfei, Electrochimica Acta . 2017,第期

机译：用于改进Li-S电池阴极的MOS2纳米能器的氮掺杂石墨烯的组合：2D组分之间的合成效应
4. Improving Kinetic in Redox Conversion By Adopting Cosse Catalytic Material in Li-S Battery [C] . Haeun Lee, Uijin Chang, Hayong Song, Pacific Rim Meeting on Electrochemical and Solid-State Science . 2020

机译：采用LI-S电池中的Cosse催化材料改善氧化还原转化的动力学
5. Development of High-Capacity Anodes for Advanced Li-/Na-Ion Rechargeable Batteries [D] . Tang, Jialiang. 2018

机译：开发用于高级锂/钠离子可充电电池的大容量阳极
6. Nitrogen Doped Carbon Nanosheets Encapsulated in situ Generated Sulfur Enable High Capacity and Superior Rate Cathode for Li-S Batteries [O] . Zhijun Guo, Xiaoyu Feng, Xingxing Li, 2018

机译：原位生成硫包封的氮掺杂碳纳米片使Li-S电池具有高容量和高速率阴极
7. Boron- and nitrogen-doped reduced graphene oxide coated separators for high-performance Li-S batteries [O] . Pauline Han, Arumugam Manthiram 2017

机译：硼和氮气掺杂的石墨烯氧化物涂覆的分离器，用于高性能LI-S电池
8. Development of Li-S Battery With Improved Sulphur Utilization and Cyclic Stability. [R] . Ramaprabhu, S. 2017

机译：提高硫利用率和循环稳定性的Li-s电池的研制。

Nitrogen Doping Improves the Immobilization and Catalytic Effects of Co_9S_8 in Li-S Batteries

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