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

asia.nikkei.com

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

#51

Post by hackeraccount »

TwoBit wrote: post #2

---------------------------------------------------------------- Dear battery technology claimant, Thank you for your submission of proposed new revolutionary battery technology. Your new technology claims to be superior to existing lithium-ion technology is is just around the corner from taking over the world. Unfortunately your technology will likely fail, because: [ ] it is impractical to manufacture at scale. [x]…

Nice. It's a common enough joke that could have been a dog but enough effort was put in to make it a real winner.

Thanks.

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

#52

Post by dale_glass »

G3rn0ti wrote: post #46

BTW: Whatever happened to those fuel cell proposals promising to replace laptop batteries altogether? I remember pictures of laptops running on working prototypes claiming to achieve 10 hours run time on a single "charge" 10 years ago. EDIT: Actually that's 17 years ago: https://www.techradar.com/news/world-of-tech/whatever-happen...

Linus Tech Tips looked at a fuel cell USB supply a few years ago. It sucked horribly, and barely produced any power:

https://www.youtube.com/watch?v=1-yLqwGS2dA

Besides that, we can have 10 hours from a battery quite easily right now. If you need more, there are external batteries powerful enough to power a laptop over USB-PD. And after that you just charge it from any power outlet. It's a known technology, very mature, and doesn't run into any trouble at airports.

Hydrogen also either requires constantly buying new cartridges, or acquiring special hardware to fill them.

It's just late to the market. At this point the batteries are actually very good and a lot more convenient. There's probably some use case in which one can't have enough batteries, set up a solar panel, or use a generator, but it's got to be a niche.

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

#53

Post by antattack »

What is interesting in this announcement is that Hitachi's solid state battery is so far behind Toyota's solid state batteries to be mass produced in 2021 :)

For those who do not know, Toyota and it's battery partners have been announcing solid state batteries 'soon' since ~2010 [1].

[1] https://www.greencarcongress.com/2011/10/toyota-20111019.htm...

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

#54

Post by 1000mA »

skrebbel wrote: post #6
1000mA wrote: post #5

Why in the article do they state the capacity as 1,000mA instead of just 1A?

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

I create a new account for each different topic I comment in so that only dang can track me. ;) For real though, I would have -1,000 karma if I only used one account because apparently to other HNers think that my comments and questions are pathetic. Very elitist community, I feel safer making new accounts.

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

#55

Post by matthewmacleod »

the_duke wrote: post #27
evgen wrote: 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.

Battery technology announcements are always extremely over hyped.

Right, except this announcement specifically isn't. It's a short description of a new technology with targeted use-cases, which explicitly points out the ways in which it's not ready to displace existing technologies.

You are correct that there is often unjustified hype around battery technology in general. But this article is absolutely not that.

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

#56

Post by adtac »

ginko wrote: post #33
harg wrote: post #25

Earlier quoted context omitted.

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

It's not practical. Just like how you won't measure the distance between two cities in metres.

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

#57

Post by rasz »

raverbashing wrote: post #7
TwoBit wrote: post #2

---------------------------------------------------------------- Dear battery technology claimant, Thank you for your submission of proposed new revolutionary battery technology. Your new technology claims to be superior to existing lithium-ion technology is is just around the corner from taking over the world. Unfortunately your technology will likely fail, because: [ ] it is impractical to manufacture at scale. [x]…

As history has shown w.r.t spam, the stuff eventually gets sorted out I'm sure people could have come with similar criticism for li-ion batteries, before them took over

Could it tho? First commercial liion batteries were developed by Sony in 1991 according to Wiki. By 1996 Toshiba was already shipping Libretto palmtops with 1200mAh 17670 cells. Today, in 2021 you cant go better than 3x this capacity in same/similar form factor.

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

#58

Post by mathfailure »

adtac wrote: post #56
ginko wrote: post #33

Earlier quoted context omitted.

Or just use the actual SI unit Joule

It's not practical. Just like how you won't measure the distance between two cities in metres.

How is measuring distance between cities in metres impractical? That's exactly how sane part of the world measures it. Though kilo-, giga- and other prefixes for units may be used when needed (when rounding is acceptable for the purpose of reducing the number to reduce the overall length of words needed to describe the measure).

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

#59

Post by mathfailure »

unishark wrote: post #13
tromp wrote: 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.

I guess the inclusion of "per" there was a typo? They used the correct units earlier in the article.

Which probably means that the journalist doesn't which one is correct. Why even bother writing an article of such quality?

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

#60

Post by _Microft »

adtac wrote: post #56
ginko wrote: post #33

Earlier quoted context omitted.

Or just use the actual SI unit Joule

It's not practical. Just like how you won't measure the distance between two cities in metres.

The SI system allows to use prefixes that take care of different orders of magnitude.

1 Wh = 3.6 kJ

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