Kuletsa Ma Burrs mu Kupanga Ma Electrode a Lithium Battery: Mayankho Othandizira Kudula Koyera

Thempeni wodulira ma electrode a lithiamu-ion, monga mtundu wofunikira kwambiri wa mipeni yamafakitale, ndi mipeni yozungulira yolondola yopangidwa kuti igwire ntchito bwino kwambiri. Ma burrs panthawi ya batire ya li-ion, kudula ndi kubowola ma electrode kumabweretsa zoopsa zazikulu. Ma protrusion ang'onoang'ono awa amasokoneza kulumikizana kwa ma electrode moyenera, zomwe zimachepetsa mphamvu ya batire ndi 5-15% pazochitika zoopsa.

Chofunika kwambiri, ma burrs amakhala oopsa kwambiri - mayeso a labotale akuwonetsa kuti ngakhale ma burrs a 20μm amatha kuboola ma separator, zomwe zimapangitsa kuti kutentha kuchoke. Kuchuluka kwa ndalama kumawonjezeka kudzera m'njira zosiyanasiyana: kukana kwakukulu kwamkati kumachepetsa moyo wa kuzungulira ndi 30%, pomwe mitengo yokhudzana ndi burr nthawi zambiri imawonjezera 3-8% pamitengo yopangira.

Kuti ntchito yodulira ikhale yodalirika, opanga amafunika mipeni yolimba ya tungsten carbide yopangidwa makamaka kuti igwiritsidwe ntchito pa zipangizo zama electrode. Mipeni yodulira ya Shen Gong ya li-ion batire imasonyeza kuti imakhala ndi moyo wautali kuposa masamba wamba popanga mosalekeza. Chinsinsi chili mu zinthu zitatu zatsopano: 1) Ma substrates a ultra-fine grain carbide omwe sagonjetsedwa ndi micro-chipping, 2) Zophimba za TiCN zomwe zimachepetsa kumatirira kwa mkuwa/aluminium ndi 40%, ndi 3) μm-level edge finishing yomwe imaletsa kupangika kwa burr koyamba.

Njira zabwino zogwirira ntchito zimawonjezera zotsatira:

• Ikani kusinthana kwa masamba maola 8 aliwonse opangira

• Sungani kuya kwa kudula kwa 0.15-0.3mm poyerekeza ndi makulidwe a elekitirodi.

• Gwiritsani ntchito zida zoyezera za laser poyang'anira kuvala kwa mlungu uliwonse

Pa mabatire atsopano amagetsi a galimoto, mabala athu apamwamba/apansi ofanana amakwaniritsa kulekerera kochepera 15μm nthawi zonse. Kafukufuku wa zitsanzo akuwonetsa kuchepa kwa zolakwika zokhudzana ndi burr mutasintha kupita ku dongosolo la Shen Gong. Kumbukirani - ngakhale kuti mabatire apamwamba odulira amawononga ndalama zochulukirapo ndi 20-30% poyamba, amaletsa kutayika kwakukulu kwa mabatire chifukwa cha zinyalala ndi kuwonongeka kwa mabatire.

Ngati mukukumana ndi mavuto a burr pakudula kwa ma electrode, chonde funsani gulu la akatswiri la ShenGong: howard@scshengong.com