The researchers, led by Professor Noriyoshi Matsumi, have published their latest findings in ACS Applied Energy Materials journal, which was reported by EurekaAlert. They say the widely used graphite anodes – the negative terminal – in a battery require a binder to hold the mineral together but the poly (vinylidene fluoride) binder currently in use has several drawbacks that reduce its position as an ideal binding material.
The researchers are now investigating a new type of binder made from a bis-imino-acenaphthenequinone-paraphenylene (BP) copolymer, which they believe could address the issue of smartphones running out of juice so quickly. They said their research could have far-reaching consequences as a more reliable back-up system can encourage consumers to invest more in expensive assets like electric vehicles that their polluting alternatives.
The lead researcher explained that while a half-cell conventional PVDF binder exhibited only 65 percent of its original capacity after 500 charge-discharge cycles, the half-cell using the BP copolymer as a binder showed a 95 percent capacity retention after 1700 such cycles. He also said that durable batteries would help those relying on artificial organs, besides the general population who hugely depend on smartphones, tablets, and laptops.
The study involved Professor Tatsuo Kaneko, Senior Lecturer Rajashekar Badam, PhD student Agman Gupta, and former postdoctoral fellow Aniruddha Nag.