The world is constantly showcasing a rising interest towards backup power, in addition to solar power storage and electric vehicles. Thus, the obvious consequence of the trends has been scientists struggling to better the performance of rechargeable lithium batteries since they are right at the center of all these products.
Finally, a breakthrough might have been made in this regard as researchers demonstrated a new easy, quick and inexpensive technique to evaluate battery performance. The new technique makes use of thermal waves to measure local lithium concentration like a function of depth within battery electrodes. The approach may lead to further developments within the Rechargeable Secondary Batteries Market as scientists trying to bring innovation could use this method to evaluate their batteries in a cost-effective and quick way.
The team stated that to use the novel technique, all one needs is a battery and to put a sensor on top of it. Thereafter the sensor would send a signal, and according to the signal frequency, the user would be allowed to change the depth at which the waves need to penetrate. In this way, one can control the depth of the penetration. The positive aspect of the method is that it is cheap and fast in comparison to other diagnostic procedures currently available. Further, it also provides a compatible way to measure any battery's characteristics.
The study shows that thermal wave sensing brings forth spatial information of lithium concentration when compared to experimental results obtained with the help of synchrotron X-ray diffraction. However, they are still a plus as that information does not require the use of a large synchrotron facility, just like the Advanced Light Source.
Being able to measure a batteries performance is not a small feat, and this is why testing new materials and subsequently improving their battery performance is thought to be an expensive and time-consuming affair. Whenever there is a requirement to test materials for improving their charging speed. Different portions of electrodes need to be taken into account as they have different local states of charge and age at distinct rates. For this reason, spatially average chemical information given by current battery diagnostic tools seems abysmal and insufficient for understanding the lithium-ion batteries degradation.
Thus, the new technique comes as a ray of sunlight for all the researchers who are currently indulged in the development of lithium-ion batteries as they can now test their batteries’ performance in a cheap and fast manner. To further their development, the team is now testing the procedure at a laboratory scale, and it would gradually start testing commercial batteries in the future. The work is a huge step towards the advancement of batteries and is a demonstration of strength within interdisciplinary science as it combines insights from thermal as well as electrochemistry communities.
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