Hanwha's perovskite-crystalline silicon laminated battery project was approved, and crystalline silicon players laid out perovskite

The track of perovskite batteries is getting more and more attention from crystalline silicon players.

Recently, Hanwha Q Cells led perovskite-crystalline silicon stacked cell technology was selected to participate in a three-year Korean national project to develop and commercialize perovskite crystalline silicon solar cells with high durability and high efficiency.

It is generally believed that by connecting perovskite cells in series on the surface of crystalline silicon cells, the spectral energy of solar energy can be maximized to obtain higher photoelectric conversion efficiency than pure crystalline silicon cells or perovskite cells.

This is also considered to be the perfect combination of the third generation of solar cell technology and the second generation of solar cell technology, just connect the individual cells in series to ensure that the current through each battery is the same. At present, the mainstream industrialization research of perovskites is to see the future of overlapping layer cells, and crystalline silicon technology researchers, especially heterojunction cell technology researchers, also recognize perovskite-crystalline silicon lamination technology.

Hanwha Q Cells, as one of the top 10 overseas players in global shipments of crystalline silicon modules, initially acquired Q CELLS to maintain a leading edge in battery technology, but in recent years, in addition to repeated entanglements with LONGi and Jinko for PERC patent rights, there have been few other technological breakthroughs. In order to ensure the competitive advantage of Korean photovoltaic technology, the Korea Energy Technology Evaluation and Planning Institute (KETEP), two research institutes, three universities, etc., signed an agreement with Hanwha to jointly study perovskite-crystalline silicon cell stacking technology to ensure that Korea has original technologies for basic materials, promote the commercialization of next-generation solar modules, and enhance competitiveness in the global solar market.

In addition to Hanwha Q CELLS, from the 3rd Global Perovskite and Stacked Battery Industrialization Forum, GCL, LONGi, Jinko, Trina, JA Solar, CANADIAN, AIXU and other leading crystalline silicon photovoltaic module companies are actively paying attention to perovskite cell technology, and GCL has built a 100 MW perovskite battery mass production base, and LONGi is participating in the forum.

The researchers believe that the bihedality of heterojunction batteries is more favorable for the stacking of perovskite batteries. Since the 2021 SNEC exhibition, LONGi has shifted from the original optimistic TOPCon route to a more optimistic heterojunction technology, and has made a leading breakthrough in heterojunction battery conversion efficiency. It is reported that LONGi's heterojunction battery technology route will be announced soon, and LONGi's concern about perovskite battery technology may also be related to it.

More and more crystalline silicon players are focusing on the third generation of photovoltaic cell technology - perovskite.