{"id":998633,"date":"2024-06-17T13:53:43","date_gmt":"2024-06-17T05:53:43","guid":{"rendered":"https:\/\/vimaterial.de\/product\/lithium-sulfide\/"},"modified":"2025-12-15T17:48:53","modified_gmt":"2025-12-15T09:48:53","slug":"lithium-sulfide","status":"publish","type":"product","link":"https:\/\/vimaterial.de\/en\/product\/lithium-sulfide\/","title":{"rendered":"Lithium Sulfide"},"content":{"rendered":"

Lithium Sulfide (Li\u2082S) is an inorganic compound made of lithium and sulfur. It is primarily used in the battery industry, especially in lithium-sulfur (Li-S) batteries, which are seen as a promising technology for high-capacity energy storage due to their high theoretical energy density and lightweight design.<\/p>\n

VIMATERIAL offers high-quality lithium sulfide with high purity (99.9%), guaranteed quality control, and short lead times. Please contact us<\/a><\/span><\/strong> if interested.<\/p>\n

Physical Properties<\/span><\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
Chemical formula:<\/td>\nLi2S<\/td>\n<\/tr>\n
CAS:<\/td>\n12136-58-2<\/td>\n<\/tr>\n
Molar mass:<\/td>\n45.95 g\/mol<\/td>\n<\/tr>\n
Appearance:<\/td>\nWhite<\/td>\n<\/tr>\n
Density:<\/td>\n1.67 g\/cm3<\/td>\n<\/tr>\n
Melting point:<\/td>\n938 \u00b0C (1,720 \u00b0F; 1,211 K)<\/td>\n<\/tr>\n
Boiling point:<\/td>\nBoiling point<\/td>\n<\/tr>\n
Solubility:<\/td>\nReact with water<\/td>\n<\/tr>\n
Crystal structure<\/td>\nAntifluorite (cubic), cF12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Thermal and Chemical Properties<\/span><\/h3>\n

High Ionic Conductivity: Li\u2082S has high ionic conductivity, making it ideal for use as a solid electrolyte or cathode material in batteries.<\/p>\n

Reactivity: Lithium sulfide can react with moisture in the air, producing toxic hydrogen sulfide gas. Therefore, it must be handled in a dry or controlled environment.<\/p>\n

Thermal Stability: Li\u2082S is stable at high temperatures, which is advantageous in battery applications where thermal management is crucial.<\/p>\n

Applications of lithium sulfide Powder<\/span><\/h2>\n

Lithium-Sulfur (Li-S) Batteries:<\/strong> Lithium sulfide is a key component in Li-S batteries, serving as either the cathode material or a precursor for creating other sulfur-based compounds. Li-S batteries are considered a potential alternative to lithium-ion batteries due to their higher theoretical energy density.<\/p>\n

Solid-State Batteries:<\/strong> Li\u2082S can be used as a solid electrolyte in solid-state lithium batteries, contributing to enhanced safety, higher energy capacity, and the potential for longer cycle life.<\/p>\n

Material Synthesis:<\/strong> Lithium sulfide serves as a precursor in the synthesis of lithium-containing sulfide materials, which are often used in solid-state electrolytes for advanced battery technologies.<\/p>\n

Limitations of lithium sulfide<\/span><\/h2>\n

Sensitivity to Moisture: Li\u2082S is highly reactive with water, which can release toxic hydrogen sulfide gas. This limits its handling and storage to controlled, dry environments.<\/p>\n

Stability Issues in Batteries: Lithium-sulfur batteries using Li\u2082S are prone to issues such as the “shuttling effect,” where polysulfide intermediates dissolve in the electrolyte, leading to reduced cycle life and efficiency.<\/p>\n

Handling and Storage<\/span><\/h2>\n

Controlled Environment: Lithium sulfide should be stored in tightly sealed containers and handled in dry, inert atmospheres to prevent reaction with moisture.<\/p>\n

Safety Precautions: Protective equipment (gloves, goggles, and respiratory protection) is recommended to avoid exposure to toxic hydrogen sulfide gas if Li\u2082S comes into contact with water or humid air.<\/p>\n","protected":false},"excerpt":{"rendered":"

Lithium Sulfide (Li\u2082S) is an inorganic compound made of lithium and sulfur. It is primarily used in the battery industry, especially in lithium-sulfur (Li-S) batteries, which are seen as a promising technology for high-capacity energy storage due to their high theoretical energy density and lightweight design. VIMATERIAL offers high-quality lithium sulfide with high purity (99.9%), […]<\/p>\n","protected":false},"featured_media":998634,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[88],"product_tag":[],"class_list":["post-998633","product","type-product","status-publish","has-post-thumbnail","product_cat-battery-materials","first","instock","shipping-taxable","purchasable","product-type-variable"],"acf":[],"_links":{"self":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product\/998633","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/comments?post=998633"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/media\/998634"}],"wp:attachment":[{"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/media?parent=998633"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_brand?post=998633"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_cat?post=998633"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/vimaterial.de\/en\/wp-json\/wp\/v2\/product_tag?post=998633"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}