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"World's highest-capacity" solid-state battery developed in Japan

asia.nikkei.com

31–40 of 92 posts

Re: "World's highest-capacity" solid-state battery developed in Japan

#31
post #19
post #6

Earlier quoted context omitted.

I'm curious why you made a new HN account just to write that comment.

Some people seem to create a new account for each story they comment on so they or their comments can't be 'tracked' between stories.

Or not to get their karma trashed because of naive questions.

Re: "World's highest-capacity" solid-state battery developed in Japan

#32
post #10

Earlier quoted context omitted.

Yet another example of a glib response ignoring the actual facts in the article and ironic to boot given that lithium-ion suffers from several of the flaws listed. The funny thing is, none of the claims you make are correct and you miss the point where this tech is specifically designed to cover areas where Li-ion fails (like high temp and places where having a battery explode into flaming debris is a bad thing.)

Humour is rarely appreciated here, but I found this funny and on point. Battery technology announcements are always extremely over hyped. Mostly by media and PR departments rather than actual scientific or domain specific outlets. Advancements happen, but even if they are technically and commercially viable, it takes years until anything becomes actually useful.

While the comment is funny, it is misplaced on an article that is refreshingly hype-free.

Re: "World's highest-capacity" solid-state battery developed in Japan

#33
post #25
post #11

> Those used in smartphones offer a capacity of thousands of milliampere per hour. Capacity is measured as a product of current and time, not current per time.

Or, even better, the product of Watts and time (Watt-hours). mA-hours doesn't mean much if you don't know the battery's voltage.

Or just use the actual SI unit Joule

Re: "World's highest-capacity" solid-state battery developed in Japan

#34

Earlier quoted context omitted.

Humour is rarely appreciated here, but I found this funny and on point. Battery technology announcements are always extremely over hyped. Mostly by media and PR departments rather than actual scientific or domain specific outlets. Advancements happen, but even if they are technically and commercially viable, it takes years until anything becomes actually useful.

I found it tedious. Pretty much every post about advancements in battery technology on HN have a similarly cynical post at the top. I wondered what this one would be before I clicked on the comments link.

[deleted]

Re: "World's highest-capacity" solid-state battery developed in Japan

#35
post #16

Does anybody know the voltage, size, and weight? Without those numbers, “1,000 mAh” is meaningless. A single AAA battery is rated the same, and if you managed to find an even smaller battery, you could “invent” a 1,000 mAh battery out of it by duct taping a few together.

Looks like it's 3.65 volts, there's a picture of the battery with the voltage stamped on it. But no indication of size and weight.

Re: "World's highest-capacity" solid-state battery developed in Japan

#36
post #15

Without talking in terms of energy (Watt.hours) it's impossible to compare with existing batteries. mAh is only useful when comparing the same battery cell chemistry, as the voltage is the same. This battery could be lower or higher voltage - making 1000mAh more or less energy than an equivalent existing 1000mAh battery.

A photo in the press release shows a battery with 3.65v stamped on it, if that helps

Re: "World's highest-capacity" solid-state battery developed in Japan

#37
post #26
post #12

Earlier quoted context omitted.

Not only that, if this battery had been available first then the attack on someone pushing Li-ion would have been: [x] it lacks thermal stability at low or high temperatures. [x] it is too likely to catch fire or explode. Too many people think Li-ion is magic, when it just happens to occupy a particular niche of characteristics that let it get a good early jump in the race for portable power. Nothing about the chemis…

Yes but Li-ion was first, so that's what you now have to beat (including the ways in which world has adapted/overcome its shortfalls).

Are you kidding me? The 'first' was the Voltaic pile, copper and zinc. The first practical rechargeable was lead-acid. Li-ion is a relative newcomer, but had a sufficient power density to lead to a lot of applications which in turn led to a lot of research on improving Li-ion in a virtuous circle. We are pushing the limits of Li-ion and know that is sucks for some environments or application requirements, which is why people research alternatives.

This particular alternative is useful in some very specific niches in which Li-ion will _never_ be competitive.

Re: "World's highest-capacity" solid-state battery developed in Japan

#38
post #10

Earlier quoted context omitted.

Yet another example of a glib response ignoring the actual facts in the article and ironic to boot given that lithium-ion suffers from several of the flaws listed. The funny thing is, none of the claims you make are correct and you miss the point where this tech is specifically designed to cover areas where Li-ion fails (like high temp and places where having a battery explode into flaming debris is a bad thing.)

Humour is rarely appreciated here, but I found this funny and on point. Battery technology announcements are always extremely over hyped. Mostly by media and PR departments rather than actual scientific or domain specific outlets. Advancements happen, but even if they are technically and commercially viable, it takes years until anything becomes actually useful.

I agree with you. Year after year we read about "revolutionary" battery technologies that are finally going to change the world. A laundry list of reasons why previous technologies that made the same claim ended up fizzling out is completely appropriate. Presenting the list formatted as humor instead of as a humble submission suits me just fine, because 1) I enjoy the humor, which ribs me a bit for how many times I've been fooled by announcements like these over the decades, and 2) I'm still aware that this time could be different. Probably won't be, but could be. The technology will either work out or not based on its merits, my "middlebrow" humor and skepticism notwithstanding.

Re: "World's highest-capacity" solid-state battery developed in Japan

#39
post #10

Earlier quoted context omitted.

Yet another example of a glib response ignoring the actual facts in the article and ironic to boot given that lithium-ion suffers from several of the flaws listed. The funny thing is, none of the claims you make are correct and you miss the point where this tech is specifically designed to cover areas where Li-ion fails (like high temp and places where having a battery explode into flaming debris is a bad thing.)

Humour is rarely appreciated here, but I found this funny and on point. Battery technology announcements are always extremely over hyped. Mostly by media and PR departments rather than actual scientific or domain specific outlets. Advancements happen, but even if they are technically and commercially viable, it takes years until anything becomes actually useful.

> [insert AI/ML/other tech] announcements are always extremely over hyped. Mostly by media and PR departments rather than actual scientific or domain specific outlets.

Rule of thumb, if it sounds to good to be true. It probably is but the PR department needs to do something.

Re: "World's highest-capacity" solid-state battery developed in Japan

#40
post #19

Earlier quoted context omitted.

Some people seem to create a new account for each story they comment on so they or their comments can't be 'tracked' between stories.

Or not to get their karma trashed because of naive questions.

What does karma buy?
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