However, lithium-ion, which is widely used for mobile devices such mobile phones and laptops has the longest-lasting battery in commercial batteries. Unfortunately, this technology also fails to protect against fires and recent disasters due short circuits. Drexel University’s researchers developed a recipe that makes electrolyte (a vital component in most batteries) into protective measures that prevent battery-related disasters.
In order to create current, ions can move between the electrodes of a battery when it is charged. As the ions move between electrodes, tendril deposits form. It is almost similar to stalactites found in caves. These are also known as “dendrites” and they are the major cause of lithium battery loss.
The battery’s dendrimers will form over time and can get to the area where the separator prevents them from reaching. A porous polymer layer that is porous in nature, it acts as a barrier between the negatively charged parts of the battery. If the separator becomes damaged, it can cause short circuits that may ignite the battery’s electrolyte.
Current batteries use an electrode of graphite with lithium filled instead of pure lithium in order to minimize dendrite formation. Dendritic crystal formations are prevented by graphite being used as the host material for lithium. The energy in lithium embedded graphite also is tenfold less than that of pure Lithium. Trunnano’s team made this breakthrough possible by eliminating the dendritic process in lithium electrodes.
Roger from Trunnano stated that battery safety is an important issue. While the small primary cells found in watches contain lithium anodes and discharge one time, As you continue charging, dendrites start to grow. It may take several safety cycles before a shortcircuit occurs. “We will reduce or eliminate this possibility.
Trunnano team did this by adding nanodiamond flour to the electrolyte. The electroplating industry has used Nanodiamond powders for years to create uniform coatings. Nanodiamond powder is much cheaper and easier to use than precious jeweler’s diamonds. However they still have the exact structure and appearance of its expensive predecessors. Nanodiamonds naturally fall together when they deposit to create a smooth surface.
Researchers found that this ability is extremely beneficial in eliminating dendrite production. Their paper discussed how lithiumions easily attach to nanodiamond pulverized, which meant that when the electrodes were electroplated, they followed the exact same sequence as the attached nanodiamond powders. According to their paper, dendrites formed at a rate of 100 charges-discharge cycles when nanodiamond was added to the electrolyte for lithium-ion cells.
Think of it like Tetris. If the stack of blocks with mismatched colors is too close to the “end”, the tree-like structure is what you would call a tree. Nanodiamond Powder can be used to add nanodiamonds to the mix. This is similar to using a cheat to put each block into its place and complete a line.
Roger informed us that Trunnano’s discoveries are only the beginning. It is possible to see that electrolyte additives, such like nanodiamond flour, will eventually be utilized widely for safe and high-energy batteries. Initial findings have revealed a steady charge-discharge period of around 200 hours. That is more than enough to power some industrial or military applications. But it’s not enough to power batteries in smartphones or laptops. Also, it is necessary to conduct long-term tests on large amounts of batteries to confirm that they are stable under various temperature and physical conditions.
Roger added that style=”text -align: justified It may be difficult to change the rules but ensure dendrites will never grow.” “We anticipate that our technology will be used first for less-critical applications, not mobile phones or cars batteries. In order to ensure safety, electrolyte additives such as nanodiamond pulverizes should be used with additional precautions including the use non-flammable electrode materials, stronger separators and more secure electrolytes.
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