With recent studies, scientists said the smartphone ‘s battery can last up to 5 years. This would be a huge step forward in the phone industry, as the Lithium-ion batteries used in most current devices are notoriously degraded over time.
To explain this situation, the scientists say that the graphic anodes (the cathodes in the battery) they use require a binder to keep it from breaking apart when transferring charges between the electrolyte. (the environment in which the charge is transferred) and the cathode (the positive in the battery). Battery durability depends on this adhesive.
The most common binder is poly (vinylidene fluoride), or PVDF, but researchers from the Japanese Institute of Advanced Science and Technology claim that the new binder – made from bis-imino-acenaphthenequinone copolymer -paraphenylene (BP) – will be more effective.
Although the scientific name is a bit difficult to read, the difference between BP copolymer and PVDF binder is simple: BP binder has better mechanical stability and adhesion to anode, conduct electricity and creating thinner electrolyte means less resistance. It also doesn’t react easily with the electrolyte, meaning it takes longer to decompose.
The charging cycle is not equivalent to the number of days of use. Many modern smartphones can last longer than 24 hours if not used a lot. “You complete a charge cycle when you use 100% of your battery capacity, but not necessarily use it on a single charge” – Apple explains.
For example, you could use 75% of your battery a day, then charge it fully overnight. If you use 25% the next day, you will use up 1 full charge cycle.
However, scientists’ findings published in ACS Applied Energy Materials show that batteries can last for 5 years before failure begins. Durable batteries can have a significant impact on other tech industries. Patients with artificial organs will benefit from the longer lifespan of medical equipment, and the improved environment.
This is not the only finding that scientists are working on. Researchers at MIT have shown that using a metal electrode in place of a conventional graphite electrode can also significantly increase the hours stored on a Lithium-ion battery.
The entire Lithium-ion battery market can also be replaced by Lithium-sulfur batteries, as they are cheaper and can easily be recovered after degradation. In addition, it is also used more effectively in drones, electric buses, trucks and locomotives …
What do you expect in smartphone battery technology in the future?