encapsulants

An Austrian team develped a model to optimize lamination parameters and to flag critical, insufficiently crosslinked and inconsistent encapsulant laminations. It could be particularly suitable for the production of double-glass solar panels.

Researchers in Spain have used a glass fiber reinforced composite material with an epoxy matrix containing cleavable ether groups as an encapsulant material for photovoltaic panels. They found that new material still has issues with performance stability, but they also ascertained it ensures lower electrical losses.

Scientists in the United States developed what they describe as a ‘scotch-tape like’ solution, which can absorb potential lead leakage from perovskite solar cells, preventing the toxic material from entering the environment. The tape, according to the scientists, can easily be integrated with existing encapsulation strategies, and was shown to absorb 99.9% of lead leaked from cells from that were severely damaged.

Suppliers of encapsulant materials – plastic sheets that are heated to laminate together the components in PV module stacks – are rapidly expanding to keep pace with module manufacturing in Asia and other parts of the world. Ethylene-vinyl acetate (EVA) continues to dominate the market, but new developments in module technology are driving a slow shift to more costly polyolefins.

The solar manufacturer will expand its annual encapsulant manufacturing capacity by 1.35 GW and backsheet production by 1 GW.