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Technology and R&D

The long read: What research is needed for the effective recycling of batteries?

With manufacturing ramping up year by year and policies already looking to get ahead of the large volumes of end-of-life products, the landscape for lithium-ion battery recycling is rapidly changing. pv magazine recently spoke with Mari Lundström, associate professor of chemical and metallurgical engineering at Aalto University, to find out what is needed on the research side for the effective recycling of batteries.

CATL claims to have made sodium-ion batteries a commercial reality

The manufacturer has launched sodium-ion products online. Production has begun and will be easily scalable, according to the CATL chairman. Researchers have been keen to make the technology work as it offers a cheaper, more environmentally friendly alternative to lithium-ion products.

Arc-shaped PV system for agrivoltaics from Germany

The PV mounting system was developed by Germany-based Goldbeck and will initially be available in the Netherlands from 2022. The company will test the new technology in a 45 MW PV project.

New tech may bring heterojunction solar cells based on p-type wafers closer to mass production

An Australian-Russian research group has developed a silicon heterojunction solar cell based on p-type gallium-doped wafers with an efficiency of 22.6% and an improved stability. The scientists are convinced that these wafers may become a mainstream solution for the SHJ segment within the next decade.

German start-up offers 5.2 kWh AC battery that works without inverter

Sax Power has developed a new residential battery which it describes as a game-changer in the battery technology.

Longi claims 25.19% efficiency for p-type TOPCon solar cell

Longi’s 25.19% efficiency rating for its new p-type TOPCon solar cells, confirmed by the Institute for Solar Energy Research in Hamelin, is reportedly a world record.

Solar module for floating PV from Hyundai

The bifacial panel has a power output of up to 485 W and an efficiency of up to 21%. It relies on a transparent backsheet and is encapsulated with polyolefin elastomer (POE).

Micro-inverter for balcony solar modules

Two different devices designed by German manufacturer Bosswerk can feed up to 300 or 600 watts into the home network. The company offers a 12-year guarantee.

Sonnen battery still running after 28,000 full charge cycles

Sonnen has published test results indicating the longevity of its storage systems after extended use.

Portable hydrogen fuel cell generator with power output of 400 W

The generator can be combined with batteries, solar panels, or small wind turbines. It is based on a proton exchange membrane fuel cell technology and is claimed to have a minimum lifetime of 5,000 working hours.