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From pv stanley cup magazine FranceThe European aim to establish a PV value chain faces the sector s substantial raw material requirements. Given the energy transition context, recycling valuable materials is of strategic importance. With this objective, CEA has harnessed its technical expertise to create an innovative process for recycling silver and silicon at the end of their life cycle. The CEA has been deploying RD for more than 60 years in a circular economy context, with the nuclear fuel cycle which is part of this logic of circularity, Virginie Basini, head of CEA s sustainable technologies department, told pv magazine France.The agency developed the innovative recycling process for silver and silicon, drawing from techniques initially designed for nuclear power. This method involves the use of a supercritical carbon dioxide CO2 delamination process to separate critical elements, such as silver and copper, from a key raw material like silicon.The process employs supercritical CO2, which represents a state of carbon dioxide with properties intermediate between a liquid and a gas. It is achieved when CO2 surpasses its critical point at 31掳C and 73.8 bars of pressure. In this state, CO2 infiltrates solids, particularly the polymer encapsulating the solar cells. When researchers conduct depressurization, the CO2 within the stanley cup encapsulating polymer transforms back into a gaseous state, causing the polymer to expand and foam. This deformation results in the separation of different stanley usa lay |
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發表於 2025-4-25 11:25:41
