{"product_id":"silicon-carbon-alloy-420-006","title":"Silicon-Carbon Composite Anode – 420 mAh\/g - 100g","description":"\u003cp\u003e\u003cstrong\u003eSilicon–carbon composite anode, 420 mAh\/g grade.\u003c\/strong\u003e Silicon nanodomains dispersed in a carbon matrix, giving roughly 15% more capacity than graphite while keeping expansion and first-cycle losses manageable. The carbon matrix buffers silicon’s volume change and maintains electrical contact as the particle breathes.\u003c\/p\u003e\u003ch3\u003eTypical properties\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eTypical value\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilicon–carbon composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAppearance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlack powder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eReversible capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~420 mAh\/g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFirst-cycle efficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e85–90%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVolume expansion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20–40% (vs ~10% for graphite)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBlended at 5–20% into graphite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cem\u003eFigures are typical values, not guaranteed limits. A lot-specific Certificate of Analysis ships with every order.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eAnode material comparison\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eAnode\u003c\/th\u003e\n\u003cth\u003eCapacity\u003c\/th\u003e\n\u003cth\u003eFirst-cycle eff.\u003c\/th\u003e\n\u003cth\u003eRate capability\u003c\/th\u003e\n\u003cth\u003eVolume change\u003c\/th\u003e\n\u003cth\u003eBest for\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNatural graphite\u003c\/td\u003e\n\u003ctd\u003e360–372 mAh\/g\u003c\/td\u003e\n\u003ctd\u003e92–94%\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003e~10%\u003c\/td\u003e\n\u003ctd\u003eCost-driven, high energy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFast-charge graphite\u003c\/td\u003e\n\u003ctd\u003e340–355 mAh\/g\u003c\/td\u003e\n\u003ctd\u003e92–94%\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e~10%\u003c\/td\u003e\n\u003ctd\u003eFast charge and high rate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMCMB\u003c\/td\u003e\n\u003ctd\u003e300–330 mAh\/g\u003c\/td\u003e\n\u003ctd\u003e90–94%\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003ctd\u003e~10%\u003c\/td\u003e\n\u003ctd\u003eReference and benchmark work\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSilicon–carbon (420)\u003c\/td\u003e\n\u003ctd\u003e400–450 mAh\/g\u003c\/td\u003e\n\u003ctd\u003e85–90%\u003c\/td\u003e\n\u003ctd\u003eModerate\u003c\/td\u003e\n\u003ctd\u003e20–40%\u003c\/td\u003e\n\u003ctd\u003eHigher energy blends\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLithium metal\u003c\/td\u003e\n\u003ctd\u003e3860 mAh\/g\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003e—\u003c\/td\u003e\n\u003ctd\u003eHalf-cells, Li-metal research\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eBlending guidance\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eSilicon content\u003c\/th\u003e\n\u003cth\u003eComposite capacity\u003c\/th\u003e\n\u003cth\u003eTrade-off\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5% Si–C\u003c\/td\u003e\n\u003ctd\u003e~375 mAh\/g\u003c\/td\u003e\n\u003ctd\u003eMinimal impact on cycle life; easiest entry point\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e10% Si–C\u003c\/td\u003e\n\u003ctd\u003e~385 mAh\/g\u003c\/td\u003e\n\u003ctd\u003eNoticeable gain, still manageable expansion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20% Si–C\u003c\/td\u003e\n\u003ctd\u003e~405 mAh\/g\u003c\/td\u003e\n\u003ctd\u003eRequires binder and electrolyte optimisation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e100% Si–C\u003c\/td\u003e\n\u003ctd\u003e~420 mAh\/g\u003c\/td\u003e\n\u003ctd\u003eResearch use; expect significant capacity fade\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eWorking with silicon anodes\u003c\/h3\u003e\u003cp\u003eSilicon expands far more than graphite on lithiation, which stresses the electrode and repeatedly ruptures the SEI. Three consequences follow. First-cycle efficiency is lower, so the cathode must be oversized to compensate. Binder choice matters more — CMC\/SBR or polyacrylic acid outperform PVDF because they tolerate strain. And the electrolyte usually needs FEC or VC to build an SEI that survives repeated expansion.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHigh-energy-density anode development\u003c\/li\u003e\n\u003cli\u003eSilicon–graphite blend optimisation\u003c\/li\u003e\n\u003cli\u003eBinder and electrolyte additive research\u003c\/li\u003e\n\u003cli\u003ePrelithiation and first-cycle loss studies\u003c\/li\u003e\n\u003cli\u003eEV and consumer cell energy density programmes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHandling\u003c\/h3\u003e\u003cp\u003eStore sealed and dry. Silicon composites are more moisture-sensitive than graphite; water reacts with the silicon surface and degrades first-cycle efficiency.\u003c\/p\u003e\u003ch3\u003eOrdering\u003c\/h3\u003e\u003cp\u003eContact us for pricing, pack sizes and current lead time. Safety data sheet and lot-specific Certificate of Analysis available on request.\u003c\/p\u003e","brand":"Advanced Materials by Vivara Scientific","offers":[{"title":"100g","offer_id":52903786316095,"sku":"AMV-EM-AN-006","price":324.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/6953\/7343\/files\/Photoroom_20260903_230552_64263d53-2809-4a50-b3ea-2ed2aefb8866.jpg?v=1788491447","url":"https:\/\/advanced-materials.com\/products\/silicon-carbon-alloy-420-006","provider":"Advanced Materials by Vivara Scientific","version":"1.0","type":"link"}