{"product_id":"clsbcnsp","title":"Nanosize Sulfur Powder (99.9%, 50 nm) for Li-S Battery Cathode, 25-100 g\/bottle, CLSBCNSP","description":"\u003cp\u003eSulfur powder is a key component as the active material for Lithium-Sulfur (Li-S) battery cathodes due to its high theoretical specific capacity (1,672 mAh\/g) while mitigating its strict physical and chemical challenges.\u003c\/p\u003e\n\u003cp\u003eTo successfully build a Li-S cell, the cathode fabrication process must overcome three major limitations of elemental sulfur: (1) \u003cstrong\u003eExtreme Insufficiency in Conductivity\u003c\/strong\u003e: Pure sulfur is an electronic and ionic insulator (10^{-30} S\/cm at room temperature). Without a tight network of conductive additives, the charge-transfer kinetics stall. (2) \u003cstrong\u003eThe \"Shuttle Effect\" of Polysulfides\u003c\/strong\u003e: During discharging, sulfur transitions from elemental S8 to long-chain soluble lithium polysulfides (Li2S8, Li2S6, Li2S4). These species readily dissolve into organic carbonate or ether electrolytes, migrating to the lithium metal anode where they react parasitically. This causes irreversible capacity loss and high internal impedance. (3) \u003cstrong\u003eSevere Density Modulation (Volume Change)\u003c\/strong\u003e: Converting S8 into Li2S induces a large ~80% structural volumetric expansion, which can disintegrate the binder matrix and cause active material delamination from the current collector.\u003c\/p\u003e\n\u003ctable width=\"100%\" style=\"width: 100%; height: 346.475px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.7125px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.7125px;\"\u003e\u003cem\u003ePart Number\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.7125px;\"\u003e\n\u003cp\u003e\u003cspan\u003eCLSBCNSP (C-LSB-C-NSP)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.7125px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.7125px;\"\u003e\u003cem\u003eCAS\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.7125px;\"\u003e\n\u003cp\u003e7704-34-9\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.7125px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.7125px;\"\u003e\u003cem\u003eMolecular Weight\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.7125px;\"\u003e\n\u003cp\u003e32.07\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.7125px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.7125px;\"\u003e\u003cem\u003eAppearance\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.7125px;\"\u003e\n\u003cp\u003e\u003cspan\u003eYellow powder (spherical particles)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.7125px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.7125px;\"\u003e\u003cem\u003eSize Distribution\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.7125px;\"\u003e\n\u003cp\u003e~50 nm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.295%;\"\u003e\u003cem\u003eSpecific SurfaceArea (BET)\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%;\"\u003e\n\u003cp\u003e20 m2\/g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.6px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 35.6px;\"\u003e\u003cem\u003eMelt Point\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 35.6px;\"\u003e\n\u003cp\u003e\u003cspan\u003e~ 112.8 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 10px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 10px;\"\u003e\u003cem\u003eDensity\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 10px;\"\u003e\n\u003cp\u003e\u003cspan\u003e2.10 g\/mL at 25 °C\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 50.8875px;\"\u003e\n\u003ctd style=\"width: 31.295%; height: 50.8875px;\"\u003e\u003cem\u003ePackage Size\u003c\/em\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3453%; height: 50.8875px;\"\u003e25 g, 50 g, and 100 g\/bottle (a larger bottle size also can be supplied upon request)\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 try to store the nanosize sulfur powder in a dry place (glovebox is the best option). \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\u003cspan\u003e\u003ca href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0378775323010510\"\u003eM. Horst, et al. A binder-free dry coating process for high sulfur loading cathodes of Li–S batteries: A proof-of-concept, Journal of Power Sources 2023, 587, 233675\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/iopscience.iop.org\/article\/10.1149\/2.006405jes\/meta\"\u003eA. Rosenman, et al. Li-S Cathodes with Extended Cycle Life by Sulfur Encapsulation in Disordered Micro-Porous Carbon Powders, J. Electrochem. Soc., 2014, 161 A657\u003c\/a\u003e \u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"KLD","offers":[{"title":"25 g","offer_id":47922993004774,"sku":"CLSBCNSP25","price":109.0,"currency_code":"USD","in_stock":true},{"title":"50 g","offer_id":47922970460390,"sku":"CLSBCNSP50","price":199.0,"currency_code":"USD","in_stock":true},{"title":"100 g","offer_id":47922970493158,"sku":"CLSBCNSP100","price":379.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0774\/6591\/1526\/files\/CLSBCNSP_main.png?v=1782466513","url":"https:\/\/echemsupplies.com\/products\/clsbcnsp","provider":"EChem Supplies","version":"1.0","type":"link"}