Researchers at Linköping University in Sweden have made a groundbreaking development in sustainable energy with the creation of a zinc and lignin battery capable of over 8000 [1] recharge cycles. Published in the journal Energy & Environmental Materials, this innovation offers a cost-effective and eco-friendly solution for regions with limited access to electricity, particularly near the equator where solar power wanes after sunset.

Figure 1. The battery. (Credit: Thor Balkhed)

Figure 1 shows The battery developed by the researches. Professor Reverant Crispin, leading the study at the Laboratory of Organic Electronics, emphasizes the importance of addressing energy needs in low-income countries. Despite the prevalence of affordable solar panels, the lack of electricity during evening hours remains a significant challenge. The new battery, although not as energy-dense as lithium-ion counterparts, presents a promising alternative, leveraging zinc and lignin's affordability and environmental benefits.

Unlike traditional zinc batteries prone to degradation, this new iteration boasts stability through the use of potassium polyacrylate-based electrolyte [2]. This innovation curtails zinc's reaction with water, a key factor in reducing the battery's lifespan. Moreover, the battery's extended charge retention period of approximately one week surpasses similar zinc-based alternatives, making it more practical for real-world applications [3].

Ziyauddin Khan [1], a researcher on the project, underscores the economic advantages of the battery. Both zinc and lignin are abundantly available and inexpensive, contributing to the battery's low cost per usage cycle. Additionally, its recyclability further enhances its appeal as a sustainable energy solution.

While initial prototypes are modest in size, the research team envisions scaling up production to create larger batteries akin to car batteries [2]. This scalability, coupled with the plentiful and affordable nature of zinc and lignin, holds promise for widespread adoption. However, mass production necessitates collaboration with industry partners.

Professor Crispin emphasizes Sweden's role in promoting sustainable technology globally. By sharing innovations and advocating for green infrastructure development, nations can circumvent the environmental pitfalls associated with traditional energy solutions [3].

In essence, the zinc and lignin battery represents a significant stride towards democratizing access to clean and reliable energy, particularly in underserved regions. Its affordability, sustainability, and potential for scalability underscore its pivotal role in shaping a more equitable and environmentally conscious energy landscape.

Source: Linköping University

References:

1. https://www.technologynetworks.com/applied-sciences/news/new-zinc-battery-is-eco-friendly-and-affordable-for-low-income-countries-386714
2. https://www.eurekalert.org/news-releases/1044395
3. https://www.theengineer.co.uk/content/news/zinc-lignin-batteries-show-promise-for-cheap-storage

Cite this article:

Hana M (2024), Empowering Sustainable Energy: Zinc and Lignin Battery Revolutionizes Access to Electricity, AnaTechmaz, pp. 952