LITIY-ION AKKUMULYATORLARINING ATROF-MUHITGA TA’SIRI: HAYOT SIKLI TAHLILI ASOSIDA MIQDORIY BAHOLASH
Keywords:
litiy-ion akkumulyator; hayot sikli tahlili; issiqxona gazlari chiqindisi; suv izi; qayta ishlash; elektromobilAbstract
Maqolada litiy-ion akkumulyatorlarning atrof-muhitga ta’sirini miqdoriy baholash maqsadida soddalashtirilgan hayot sikli tahlili (Life Cycle Assessment, LCA) metodologiyasi qo‘llanildi. Funksional birlik sifatida 1 kW soat saqlash sig‘imiga ega NMC (nikel-marganets-kobalt) tipidagi akkumulyator qabul qilindi. Adabiyotlarda keltirilgan chiqindi koeffitsiyentlari asosida issiqxona gazlari chiqindisi ( ), suv izi (bu biror shaxs, mahsulot, korxona yoki mamlakat tomonidan ishlab chiqarish va iste’mol qilish jarayonida sarflangan yoki ifloslangan jami chuchuk suv miqdorini o'lchovchi ekologik ko'rsatkichdir) va qayta ishlashning ekologik samarasi hisoblab chiqildi. 60 kW∙soat sig‘imli elektromobil akkumulyatori misolida ishlab chiqarish bosqichida o‘rtacha 5,1 t CO2 - ekvivalent chiqindi va 79,2 m³ suv sarfi aniqlandi. Qayta ishlangan xomashyodan 30% ulushda foydalanish umumiy chiqindini taxminan 15% ga kamaytirishi ko‘rsatildi. Olingan natijalar akkumulyator sanoatida qayta ishlash infratuzilmasini rivojlantirish zarurligini asoslaydi.
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