"Look at all the Apple products that are powered at their core by
lithium-ion batteries," noted Kevin See, an industry analyst for Lux
Research. "The ability to pack all that energy into a small volume has
truly enabled a revolution in functionality."
Indeed, high energy
density has been a key to the success of lithium-ion, and it was
Goodenough's work that set the stage for it. Before his efforts,
researchers tried to use titanium sulfide with lithium, only to find it
grew dendrites and short-circuited. Similarly, nickel cadmium
chemistries showed promise but failed to operate at the necessary
"With lithium, I saw that they were going to need a
cathode that would give a much better voltage," Goodenough says. "So I
developed a lithium cobalt oxide, and that was the cathode that went in
the first lithium-ion battery."
Today, Goodenough still sees a
need for more energy density, especially if electric cars are to fulfill
their ultimate promise. That's why, as he approaches his 90th birthday
later this year, he continues to work on new chemistries.
now, lithium-ion batteries rely on a mature technology that doesn't
quite make it for the electric car market," Goodenough says. "That's why
we're in the process of writing up a new proposal.
“We want to show what can be done to move things forward." — Charles Murray is editor at UBM Tech's Design News.
Li-ion technology has been good-enough for now (sorry could not resist that). But this technology has been around for quite sometime now. Other than incremental improvements is there any other chemical technology that improves the energy stored/cu-in dramatically.
Just a thought.
Can we pack some material alongside the Li-ion batteries which can convert the chemical inside the battery to some kind of a harmless salt at the end of its life.
Just have some mechanism to puncture it into the main battery system when it is to be thrown away.
The development of efficient batteries was clearly a contributing factor. Even the early hand held devices indicated that more power was needed for longer periods of time.
The Li-ion technology proved to be the most promising technology, so it got a lot of investment. There are other technologies still waiting for maturity and funding for the next generation.
My only concern is the disposal of the Li devices. Though we could mitigate that problem with an active recycling campaign.
Just a thought.
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.