{"product_id":"cbssepcsis2","title":"Silicon Disulfide (SiS2, 99.9%) Precursor Powder for Sulfide Solid-State Electrolyte Synthesis, 5 g\/bottle, CBSSEPCSiS2","description":"\u003cp\u003eSilicon disulfide (SiS2) is an exceptionally high-performance network-forming precursor utilized in the synthesis of both glassy and crystalline sulfide solid-state electrolytes (SSEs), such as the Li2S-SiS2 and Li2S-SiS2-Li3{PO}4 systems. Compared to phosphorus-based sulfide networks (PS4]^{3-}), silicon-based networks ([SiS4]^{4-}) feature highly polarizable Si^{4+} centers that weaken the electrostatic binding energy with mobile lithium ions. This structural trait significantly increases room-temperature ionic conductivity (\u0026gt;10^{-4} S cm^{-1} in purely amorphous states) and suppresses electrochemical reduction against lithium metal anodes, making SiS2 heavily favored for stabilizing the negative electrode interface \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Energy Mechanochemical Ball Milling\u003c\/strong\u003e: Mechanochemical amorphization is highly preferred for SiS2 systems because it forces a room-temperature reaction, completely bypassing the risks of high-temperature sublimation and quartz-tube corrosion. (1) \u003cem\u003eStoichiometric Formulation\u003c\/em\u003e: Weighed and blended inside the Argon glovebox according to the targeted binary glass matrix (e.g., a 0.6Li2S * SiS2 system):\u003c\/p\u003e\n\u003cp\u003e                  \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBSSEPCSiS2_02.png?v=1780784832\" alt=\"\" width=\"374\" height=\"32\"\u003e                              \u003c\/p\u003e\n\u003cp\u003e(2) \u003cem\u003eMilling Configuration\u003c\/em\u003e: Load the mixed powders into a premium zirconia or tungsten carbide (WC) milling jar. Utilize a high ball-to-powder weight ratio (typically 20:1) with small-diameter (5 mm) milling balls to maximize highly energetic shear forces. (3) \u003cem\u003eMilling Profile\u003c\/em\u003e: Run the planetary ball mill at 450 to 550 RPM for 20 to 40 hours. Program a mandatory alternating cooling cycle (e.g., 20 minutes of runtime followed by 15 minutes of rest) to prevent localized frictional heating from exceeding the sublimation threshold of the trapped SiS2. (4) \u003cem\u003ePost-Processing\u003c\/em\u003e: The resulting product is a highly uniform, completely amorphous glass powder featuring wide structural channels that facilitate fast Li+ transport.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 296.087px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 46.8875px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 46.8875px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 46.8875px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCBSSEPCSiS2 (C-BSSE-PC-SiS2)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e13759-10-9\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003e\u003cem\u003ePurity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026gt;99.9%\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e92.21 g\/mol\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003eWater Level\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e\u0026lt;0.01 wt% (battery grade)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003eMelt Point\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e1090℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 30.5755%;\"\u003eBoling Point\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%;\"\u003e\n\u003cp\u003e\u003cspan\u003e1130℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 30.5755%;\"\u003eDensity\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%;\"\u003e\n\u003cp\u003e\u003cspan\u003e1.853 g\/cm3\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 30.5755%; height: 35.6px;\"\u003ePackage Grade\u003c\/td\u003e\n\u003ctd style=\"width: 69.0647%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e5 g\/bottle\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes\u003c\/strong\u003e: Please store the SiS2 powder in a dry place (glovebox is preferred due to its air\/humidity sensitivity).\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eReferences\u003c\/strong\u003e: \u003c\/span\u003e\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0167273804006691\"\u003e\u003cspan\u003eA. Hayashi, et al. Mechanochemical synthesis of amorphous solid electrolytes using SiS2 and various lithium compounds, Solid State Ionics, 2004, 175, 1-4\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/ceramics.onlinelibrary.wiley.com\/doi\/abs\/10.1111\/jace.18719\"\u003eS. Asano, et al. Effects of different glass formers on Li2S–P2S5–MS2 (M = Si, Ge, Sn) chalcogenide solid-state electrolytes, \u003cspan class=\"cit-title\"\u003e\u003ci\u003eJ. Am. Ceramic Soc.,\u003c\/i\u003e\u003c\/span\u003e \u003cspan class=\"cit-year-info\"\u003e2023\u003c\/span\u003e\u003c\/a\u003e\u003cspan class=\"cit-volume\"\u003e\u003ca href=\"https:\/\/ceramics.onlinelibrary.wiley.com\/doi\/abs\/10.1111\/jace.18719\"\u003e, 106, 354-364\u003c\/a\u003e\u003c\/span\u003e\u003cspan class=\"cit-pageRange\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"MKL","offers":[{"title":"Default Title","offer_id":47752261730534,"sku":"CBSSEPCSiS2","price":299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CBSSEPCSiS2_main.png?v=1780784779","url":"https:\/\/echemsupplies.com\/products\/cbssepcsis2","provider":"EChem Supplies","version":"1.0","type":"link"}