Hanwha Q Cells clarifies subject of infringed patent

Hanwha solar modules. Source: Hanwha Group

March 11 (Renewables Now) - Korean photovoltaics (PV) manufacturer Hanwha Q Cells explained Friday that the patent over which it is suing rivals relates to the solar cell structure and is not restricted to any particular method of manufacture.

This clarification came after one of the three rivals Hanwha Q Cells is suing, namely Longi Solar, pointed out that it currently uses plasma-enhanced chemical vapor deposition (PECVD) technology, while the disputed patent relates to atomic layer deposition (ALD) technology.

Last week, Hanwha Q Cells said that subsidiaries in the US and Germany have taken legal actions against JinkoSolar, Longi Solar and REC Group over the unlawful import and sale of patent-infringing PV cells and modules.

Both Longi Solar and REC Group responded by saying they learned about the case from media reports. JinkoSolar, in turn, said that the complaints are without technical or legal merit.

Hanwha Q Cells released the following statement on Friday:

“The patent claims asserted by Hanwha Q CELLS are not restricted to any particular method of manufacture, such as atomic layer deposition (ALD) or plasma-enhanced chemical vapor deposition (PECVD). The infringement claims relating to the ‘215 patent are directed to solar cell structure with a first dielectric layer including aluminum oxide and a second dielectric layer that contains hydrogen. The patented technology can be applied in many ways. A solar cell employing what is known as Passivated Emitter Rear Cell (PERC) technology is only one type of solar cell that may use technology covered by the '215 patent."

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