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Modification of Lithium Sulfide Prepared with Lithium Metal by Lithium Nitride
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Zhen LEI1, 2, Ge CHEN1, 2, Chuan XU2, 3, Jiale SUN1, Liu YANG1, Huan TIAN1, 2, Yang LIU2, 3
Mining and Metallurgical Engineering | 2024, 44(4) : 81 - 83
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Mining and Metallurgical Engineering | 2024, 44(4): 81-83
• SPECIAL ISSUE: BATTERY MATERIALS •
Modification of Lithium Sulfide Prepared with Lithium Metal by Lithium Nitride
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Zhen LEI1, 2, Ge CHEN1, 2, Chuan XU2, 3, Jiale SUN1, Liu YANG1, Huan TIAN1, 2, Yang LIU2, 3
Affiliations
  • 1.Tianqi Lithium (Shehong) Co., Ltd., Shehong 629200, Sichuan, China
  • 2.Sichuan Key Laboratory of Lithium Resources and Materials, Shehong 629200, Sichuan, China
  • 3.Tianqi Xinlong Technology (Chengdu) Co., Ltd., Chengdu 610000, Sichuan, China
Published: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.015
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Lithium sulfide was prepared by solid phase syntheses, with lithium metal as the lithium source, sulfur powder as the sulfur source, and lithium nitride as the additive. Thermodynamic analysis results show that lithium nitride can promote the reaction of lithium metal with sulfur powder to synthesize lithium sulfide; Li3N firstly reacts with sulfur powder to release N2, leading to holes formed on the molten lithium metal sheet and the contact area between lithium metal and sulfur powder further expanded. Thus a loose and porous skeleton structure is formed, which is conducive to subsequent crushing and can reduce the risk of secondary reactions in the following ball milling process. With Li∶S∶Li3N=2∶2∶0.4 (molar ratio), crude lithium sulfide can be obtained after 8 hours reaction at 100 ℃. It is then subjected to calcination, impurity removal and ball milling processes, and a kind of lithium sulfide products with purity greater than 99.95% and particle size less than 15 μm can be obtained, which can be used in EV. This method provides a new idea for industrial production of lithium sulfide products.

solid-state battery  /  solid electrolyte  /  lithium nitride  /  lithium  /  sulphur  /  material for EV
Zhen LEI, Ge CHEN, Chuan XU, Jiale SUN, Liu YANG, Huan TIAN, Yang LIU. Modification of Lithium Sulfide Prepared with Lithium Metal by Lithium Nitride[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 81 -83 . DOI: 10.3969/j.issn.0253-6099.2024.04.015
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doi: 10.3969/j.issn.0253-6099.2024.04.015
  • Receive Date：2024-05-24
  • Online Date：2026-03-18
  • Published：2024-08-01
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  • Received：2024-05-24
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Affiliations
    1.Tianqi Lithium (Shehong) Co., Ltd., Shehong 629200, Sichuan, China
    2.Sichuan Key Laboratory of Lithium Resources and Materials, Shehong 629200, Sichuan, China
    3.Tianqi Xinlong Technology (Chengdu) Co., Ltd., Chengdu 610000, Sichuan, China
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https://castjournals.cast.org.cn/joweb/kygczz/EN/10.3969/j.issn.0253-6099.2024.04.015
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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