Researchers at Linköping University in Sweden have introduced a pioneering battery technology that could significantly impact global energy storage strategies, particularly in low-income countries. This breakthrough comes at a time when the demand for affordable and sustainable energy solutions is at an all-time high.
The battery, developed in collaboration with Karlstad University and Chalmers University of Technology, leverages zinc and lignin—two abundant and environmentally benign materials. This innovative design aligns with the United Nations’ 2030 Agenda for Sustainable Development, specifically targeting Goal 7, which aims to ensure access to affordable, reliable, sustainable, and modern energy for all.
According to Professor Reverant Crispin of the Laboratory of Organic Electronics at Linköping University, “This battery technology is not just a sustainable choice but also a financially viable solution for regions with limited electricity access.” The zinc-lignin battery provides a practical alternative to traditional lead-acid batteries, avoiding the use of toxic materials while offering comparable energy density and a significantly longer life span.
Despite their lower energy density compared to lithium-ion batteries, the new zinc-lignin batteries excel in durability and recyclability, with the potential to be used over 8,000 times while maintaining about 80% of their efficiency. "The stability and cost-effectiveness of zinc-lignin batteries make them a competitive alternative for energy storage," said Ziyauddin Khan, another researcher involved in the study.
The research team has also tackled one of the longstanding challenges with zinc-based batteries: their short lifespan due to dendritic growth. By using a novel water-in-polymer salt electrolyte (WiPSE), the researchers have managed to stabilize the zinc and enhance the battery's overall performance and safety features.
As the technology scales up from laboratory prototypes to larger, commercially viable units, the potential for mass production grows, pending partnership with industry stakeholders. Such advancements could usher in a new era of energy solutions that are not only economically viable but also environmentally sustainable.
Professor Crispin highlighted Sweden's role in fostering this technology: "Sweden's commitment to innovation allows us to assist other nations in embracing sustainable technology from the outset, preventing future environmental crises."
This development represents a critical step forward in creating a sustainable, affordable energy landscape for countries that are currently underserved by traditional energy infrastructures.
