{"product_id":"304ss-coin-cell-spacer-cr2032-2025-2016-2430-013","title":"304SS Coin Cell Spacer, 15.8 mm Dia. x 0.5 mm, for CR2016\/2025\/2032, 100 pcs","description":"\u003cp\u003e\u003cstrong\u003e304 stainless steel coin cell spacer discs, 15.5 × 0.5 mm.\u003c\/strong\u003e Precision-thickness discs that fill the void in a coin cell stack and transmit spring pressure evenly across the electrode. Correct spacer selection is one of the cheapest ways to reduce scatter between nominally identical cells.\u003c\/p\u003e\u003ch3\u003eSpecification\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eProperty\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e304 stainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePrecision ground, uniform thickness\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSurface\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBright, degreased\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFormats\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCR2032 \/ CR2025 \/ CR2016 \/ CR2430\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 pcs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eChoosing spacer thickness\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth\u003eStack\u003c\/th\u003e\n\u003cth\u003eTypical spacer\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR2032, thin electrode\u003c\/td\u003e\n\u003ctd\u003e1.0 mm + 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eTwo spacers to take up the extra height\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR2032, standard\u003c\/td\u003e\n\u003ctd\u003e1.0 mm or 0.5 mm\u003c\/td\u003e\n\u003ctd\u003eMost common configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR2025\u003c\/td\u003e\n\u003ctd\u003e0.5 mm\u003c\/td\u003e\n\u003ctd\u003eLess headroom than 2032\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCR2016\u003c\/td\u003e\n\u003ctd\u003e0.5 mm or none\u003c\/td\u003e\n\u003ctd\u003eVery little internal height available\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLi-metal half cell\u003c\/td\u003e\n\u003ctd\u003e0.5 mm above the Li disc\u003c\/td\u003e\n\u003ctd\u003eProtects the lithium from spring imprint\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003ch3\u003eCoin cell stack order\u003c\/h3\u003e\u003cp\u003eA standard CR2032 assembly runs, from the negative case upward: negative case, spring (wave washer), spacer disc, lithium or anode disc, separator, electrolyte, cathode disc, positive case. The spring keeps the stack under constant compression as the electrodes breathe during cycling; without it, contact resistance rises and results scatter.\u003c\/p\u003e\u003ch3\u003eWhy stack height matters\u003c\/h3\u003e\u003cp\u003eToo little total height and the spring cannot compress, so the stack sits loose and interfacial resistance climbs. Too much and crimping deforms the electrode or pierces the separator, producing soft shorts that look like rapid capacity fade. Aim for firm spring compression without deformation, and keep the combination identical across every cell in a comparison.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eCoin cell half-cell and full-cell assembly\u003c\/li\u003e\n\u003cli\u003eStack height adjustment for varying electrode thickness\u003c\/li\u003e\n\u003cli\u003eReducing cell-to-cell variation in comparative studies\u003c\/li\u003e\n\u003cli\u003eLithium metal anode protection\u003c\/li\u003e\n\u003c\/ul\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":"100 pcs","offer_id":52903825441087,"sku":"AMV-EM-OT-013","price":23.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/6953\/7343\/files\/Photoroom_20260903_233603.jpg?v=1788493024","url":"https:\/\/advanced-materials.com\/products\/304ss-coin-cell-spacer-cr2032-2025-2016-2430-013","provider":"Advanced Materials by Vivara Scientific","version":"1.0","type":"link"}