New battery technology is needed for the sustainability of the environment as the traditional Lithium-ion (Li-ion) battery cannot provide enough nominal energy while maintaining safety limits. I came across a research about using Lithium-Sulfur (Li-S) as a replacement, and I just want to share what I have learned. For more information, download the file below. Lithium-ion batteries associate with the modern world for the collection of electricity. The lithium-ion cells have many advantages including: high specific energy and load capacity, long cycles and extended shelf life, low internal resistance, simple charging algorithm and relatively short charging time, low self-discharge. However, the current lithium-ion battery, used as electrical energy storage system (EES) technology, does not meet high energy and power requirements for large applications such as electric vehicles with comparable driving range to internal combustion engines (ICEs). In addition, they also are not suitable for use in fixed power networks, which require a higher capacity, lower cost, and greater safety. The main disadvantage of lithium-ion batteries lies in the fundamental chemistry of the cell, which uses transition metal compounds to store electricity through topotactic reactions (inside crystal lattices) on both eleactrodes. The Li-S cell has safety and protection qualities that exceed those of lithium-ion batteries, as well as requiring a robust housing structure, reducing the energy density of the battery pack. The Li-S cell holds promise for the future, but the current state of the cell's degradation characteristics prevents it from competing with lithium-ion cells. Retrieved from Next-Generation Batteries with Sulfur Cathodes by Krzysztof Jan Siczek
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Generally, people injure themselves at least once a week; the number increases for the age group of fifty and above as they are more vulnerable to serious medical conditions relating infections. Moreover, infected wounds are caused by external forces coming from the bacterial colonization as well. Bandage offers a temporary solution to keep away the microorganisms but overtime, the presence of air bubbles underneath the bandage makes way for bacteria to go in. It is hard for users to notice what's going on with their bandage and to know when to change it. Infectious bandage prolong the time it takes for a wound to heal under normal conditions. The problem above can be resolved by producing a bandage that has the ability to monitor the acidity of the surrounding of the wound. On the outside, this bandage will look the same as any other bandages at pharmaceutical stores. The bandage pad will have the same absorbency, the pad size will be suitable for small wounds of up to about an inch long. However, the adhesive part of the bandaged will now be made out of the same materials as that of the pH test strips so that it will change color based on change in acidity which is usually caused by bacteria infiltration. The change of colors will be resulted from the dried up plant pigments called anthocyanin. I started a project on a mere idea that has given me the chance to be part of an entrepreneur hub, more specifically The Basement, at UCSD. I am honored to be part of The Basement and I hope to further implement this product in its abilities to measure more significant parameters that will have a positive impact on the environment. For further information about Styx, I have initiated the creation of the website linked below. As my first blog post, I’m very excited to see what will come next on my journey. I am determined to continue onward! This blog will also include life updates as well as science topics for discussion. Thank you for your time! |
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