能源研究与管理2025，Vol.17Issue(2)：137-145,165,10.DOI:10.16056/j.2096-7705.2025.02.016
废旧晶硅光伏组件中EVA去除方法研究进展
Research Progress on Removal Methods of EVA from Waste Crystalline Silicon Photovoltaic Modules
刘悦 1郑卫国 1路洋 1李朗 2郭明鑫1
作者信息
- 1. 广东文科绿色科技股份有限公司,广东佛山 528300||广东省园林景观与生态恢复工程技术研究中心,广东 深圳 518000
- 2. 广东文科绿色科技股份有限公司,广东佛山 528300
- 折叠
摘要
Abstract
Ethylene-vinylacetate copolymer(EVA)serves as a core encapsulation material for crystalline silicon photovoltaic(PV)modules due to its excellent adhesive,protective,and optical properties.However,its strong bonding with glass,cell sheets,and backsheets,along with stable chemical characteristics,leads to significant challenges in efficient separation and removal during module recycling,presenting a key obstacle in constructing a green recycling system for PV modules.In response,this paper reviews the structure of crystalline silicon PV modules and the properties of EVA films,and introduces three EVA removal techniques,thermal decomposition,chemical swelling,and mechanical removal.Research shows that thermal decomposition method is the most effective method to directly eliminate EVA,but the waste gas would be generated during the heating process,which generates environmental pollution.Chemical swelling method is a promising method for the separation of layers,but most of used solvents are toxic.Mechanical removal method is simple to operate,but it cannot achieve full separation of different layers.All three methods have their own shortcomings.Therefore,the development of high-precision separation equipment,in-depth research on green solvothermal methods,and the development of coupled process technologies are the key research directions for the future.关键词
晶硅光伏组件/废旧/EVA去除/回收/热解/化学溶胀/机械去除Key words
c-Si photovoltaic modules/waste/removal of ethylene-vinylacetate copolymer(EVA)/recycle/thermal decompo-sition/chemical swelling/mechanical removal分类
能源科技引用本文复制引用
刘悦,郑卫国,路洋,李朗,郭明鑫..废旧晶硅光伏组件中EVA去除方法研究进展[J].能源研究与管理,2025,17(2):137-145,165,10.
