Christy Chan
Nanoscience Microscopy
UCLA
August 5, 2015
August 5, 2015
Wednesday
Many people own a phone in their lives or to be more specific 6.8 billion on this Earth. Another example is that over 2,405,518,376 people owned a computer. With this statistics, many would know that to power phones, computers, or any electronics, you would need batteries to do so. As time goes on, people would think that their phones or computers might be too outdated to function. This lead others to get an upgrade and waste money, not bothering to wonder about fixing the battery.
Then there comes the lithium ion batteries, one of the greatest advancement in technology especially for portable electronics, which is popular in our current and future generation. We are able to utilize wires to charge our electronics, instead of always changing the batteries built into our electronics. However, self-discharge and battery depletion starts to happen as time goes on. For example, many mobile phones are not expected to last longer than three years based on a study. Research, recently, has indicated that the materials and surfaces of the electrode correlates with their electrochemical performance. Therefore, this leads to the question if there are better materials that would improve the battery life for electronics. Many researches demonstrates that lithium metal can penetrate through separator and cause a contact between cathode and anode which leads to damages in the battery. Even though it has many advantages over many other metal anodes, there are still complications with it. During the late 1980s and 1990s, scientists made a breakthrough by substituting graphitic carbon for lithium metal, creating lithium ion batteries. However, all batteries still must come into depletion. So is there a better way to make more efficient batteries, meaning greater longevity and power?
References:
- http://qz.com/179897/more-people-around-the-world-have-cell-phones-than-ever-had-land-lines/
- http://www.sciencedirect.com/science/article/pii/S1293255805002852
- https://en.wikipedia.org/wiki/Lithium-ion_battery
- http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries
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