Friday, May 24, 2024

Building Batteries Of Future

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Researchers from Texas A&M University have developed a way to build better batteries for a better future by visualizing nanoscale flaws in current models.

Graphical Abstract. Credit: Patterns (2022). DOI: 10.1016/j.patter.2022.100634

Energy is a very basic concern when it comes to development of any technology. May it be a space shuttle or even a new mobile device. Energy storage systems are getting complex with their size and increasing requirements. Researchers are trying to develop a better option by introducing a variety of new ways to manufacture as well as new methods of storing power.

The international group of experts, led by researchers from Texas A&M University, have combined powerful imaging techniques and large data sets to better understand why lithium-ion batteries fail and how they can be improved. “One technical gap that exists today is that we don’t really understand fully what’s happening at the nanoscale and that’s where we’ve worked closely with a Canadian Light Source to leverage a number of different imaging techniques to investigate further,” says David Santos, a Texas A&M chemistry Ph.D. graduate and former member of Texas A&M chemist Sarbajit Banerjee’s research group.

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Researchers were able to visualize the flaws and map defects that occur within the batteries using the SM beamline at the Canadian Light Source (CLS)—located at the University of Saskatchewan (UofS). “The X-ray tools at the Canadian Light Source are great for eavesdropping on the batteries, and the little secret conversations that ions are having and understanding what makes them fail,” says Banerjee.

The team is interested in identifying in real time the flaws that occur which would allow them to measure the complex relationship between the battery’s materials, its shape, and the chemical reactions that occur within. Reaching this goal would allow researchers to proactively address design failures.

The chemical and mechanical changes that occur during a battery’s lifetime can also lead to flaws—like cracks in the ceramic mug—affecting its longevity. Santos says that drawbacks that affect a battery’s performance are also linked to safety hazards and have a large impact on the environment. More efficient batteries can help reduce waste and help us transition to a greener grid.

Reference : David A. Santos et al, Multivariate hyperspectral data analytics across length scales to probe compositional, phase, and strain heterogeneities in electrode materials, Patterns (2022). DOI: 10.1016/j.patter.2022.100634


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