A proposed revamping of the lithium-ion batteries designed for laptops, tablets, and phones has been announced by a co-inventor of the battery. This proposed invention will introduce the next generation of battery technology – the strong-state battery, with up to three times the energy capacity of the present lithium-lion battery.
The Fermi Award winner, John Goodenough, the brain behind the lithium cobalt oxide material which makes up the cathode in present day Li-ion batteries, partnered with Maria Helena Braga to create a battery which its electrolyte is solid glass. This is not the first of its kind, though, as last year, Samsung and MIT jointly developed a solid-state technology battery.
The study reveals that solid-state batteries bring a solution to a lot of issues –, especially safety. For instance, Samsung had the need to recall all its Galaxy Note7 smartphone as a result of the records of its battery explosion. In a reaction, Samsung claimed the batteries were manufactured by third-party manufacturers. In Note7 battery issues and other battery-related accidents, the explosions have been mainly attributed to short circuits which cause overheating in batteries.
Short circuits are caused by some factors, one of which is called “dendrites.” This is a metal whisker which can suddenly build and push through the electrolyte protector separating the anode and cathode of the battery. However, the explosions recorded in Samsung phones can be attributed to other manufacturing flaws and not dendrites. According to Goodenough and Braga, their solid-state batteries’ glass electrolyte prevents the formation of dendrites.
Experiments have also revealed that the solid-state batteries may have as high as three times the energy capacity of the current Li-ion batteries. This means that the solid-state battery would be able to save up to three times the power a Li-ion battery of the same volume would store. The study reveals that a fully charged cell can run down after over 1,200 cycles with low cell resistance. The cells typically run at relatively low temperatures – as low as -4 degrees Fahrenheit.
However, one question still begs for an answer: What is the capacity of the solid-state battery after the cells are run down? Codex research on the Lithium-ion battery life reveals that the capacity of a lithium-ion battery may go down to 73% after about 250 complete discharge cycles.
Goodenough and Braga also claim that sodium-made electrolyte is more eco-friendly than the lithium in normal cells. The glass electrolyte makes it possible for battery manufacturers to use alkali metals to cover both the anode and cathode sides; this simplifies the manufacturing process. So what happens next? Search for a manufacturing company
So What Is The Implication?
For the solid-state batteries to replace the lithium-ion batteries, it has to prove its efficiency. Although consumers love safety, they may not be happy if the battery of their devices now has a lower battery life than it used to have. However, their team of researchers led by Goodenough and Braga seem to have allayed the fears of consumers promising users satisfaction with the innovation.