Biodegradable alternative could replace lithium-ion by Staff Writers Adelaide, Australia (SPX) Feb 28, 2022
Fully organic rechargeable household batteries are an ideal alternative to traditional metal-based batteries, in particular for reducing pollution to landfill and the environment. Now researchers at Flinders University, with Australian and Chinese collaborators, are developing an all-organic polymer battery that can deliver a cell voltage of 2.8V - a big leap in improving the energy storage capability of organic batteries. "While starting with small household batteries, we already know organic redox-active materials are typical electroactive alternatives due to their inherently safe, lightweight and structure-tunable features and, most importantly, their sustainable and environmentally friendly," says senior lecturer in chemistry Dr Zhongfan Jia, a research leader at Flinders University's Institute for Nanoscale Science and Technology. In collaboration with Dr Kai Zhang from the Zhejiang Sci-Tech University in China, Dr Jia's research team now aims to make a fully biodegradable battery with a cell voltage of more than 3.0V and capacity to above 200mAh/g through the innovative organic electrode materials and innovative structure design. While traditional lithium-ion batteries have enabled a proliferation of portable devices and even electric vehicles, rising demand for materials such as lithium, cobalt and other mineral ore resources have led to a range of social and environmental impacts including the safe usage and non-hazardous disposal of batteries. Developing rechargeable batteries from ethically sourced, sustainable materials for on-demand requirements is a potential alternative. Research around the world is focusing on improving fully organic batteries cell voltage and capacity and durability of the materials to contribute to recycling in a circular economy with affordable and efficient batteries. "Although the capacity needs further improvement, our work shows the promise of developing high-voltage, fully organic batteries with a judicious electrode design," Dr Jia says.
Research Report: "An All-Organic battery with 2.8 V output voltage"
Scientists discover new electrolyte for solid-state lithium-ion batteries Lemont IL (SPX) Feb 17, 2022 New battery material offers promise for the development of all-solid batteries. In the quest for the perfect battery, scientists have two primary goals: create a device that can store a great deal of energy and do it safely. Many batteries contain liquid electrolytes, which are potentially flammable. As a result, solid-state lithium-ion batteries, which consist of entirely solid components, have become increasingly attractive to scientists because they offer an enticing combination of higher ... read more
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