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

----------------------------------------------------------------<p>Dear battery technology claimant,<p>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:<p>[ ] it is impractical to manufacture at scale.<p>[x] it will be too expensive for users.<p>[ ] it suffers from too few recharge cycles.<p>[ ] it is incapable of delivering current at sufficient levels.<p>[ ] it lacks thermal stability at low or high temperatures.<p>[x] it lacks the energy density to make it sufficiently portable.<p>[ ] it has too short of a lifetime.<p>[ ] its charge rate is too slow.<p>[ ] its materials are too toxic.<p>[ ] it is too likely to catch fire or explode.<p>[ ] it is too minimal of a step forward for anybody to care.<p>[ ] this was already done 20 years ago and didn&#x27;t work then.<p>[x] by this time it ships li-ion advances will match it.<p>[ ] your claims are lies.<p>----------------------------------------------------------------

From the company website: &quot;Hitachi Zosen is promoting development into an all-solid-state lithium ion battery that is anticipated as a post-lithium ion battery applicable to next-generation cars. We have developed an original manufacturing method that has successfully created an all-solid-state battery without the mechanical pressure conventionally used during charging and discharging. Our battery maintains a high level of safety and has a wide operating temperature range of -40℃ to 100℃. It can work under environments where current lithium ion batteries cannot, and its application to new fields and markets is expected.&quot;<p><a href="https:&#x2F;&#x2F;www.hitachizosen.co.jp&#x2F;english&#x2F;technology&#x2F;hitz-report&#x2F;2018h30_11&#x2F;index.html#report08" rel="nofollow">https:&#x2F;&#x2F;www.hitachizosen.co.jp&#x2F;english&#x2F;technology&#x2F;hitz-repor...</a>

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 &quot;charge&quot; 10 years ago.<p>EDIT:<p>Actually that&#x27;s 17 years ago:<p><a href="https:&#x2F;&#x2F;www.techradar.com&#x2F;news&#x2F;world-of-tech&#x2F;whatever-happened-to-mobile-fuel-cells-718317" rel="nofollow">https:&#x2F;&#x2F;www.techradar.com&#x2F;news&#x2F;world-of-tech&#x2F;whatever-happen...</a>

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.

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

What is interesting in this announcement is that Hitachi&#x27;s solid state battery is so far behind Toyota&#x27;s solid state batteries to be mass produced in 2021 :)<p>For those who do not know, Toyota and it&#x27;s battery partners have been announcing solid state batteries &#x27;soon&#x27; since ~2010 [1].<p>[1] <a href="https:&#x2F;&#x2F;www.greencarcongress.com&#x2F;2011&#x2F;10&#x2F;toyota-20111019.html" rel="nofollow">https:&#x2F;&#x2F;www.greencarcongress.com&#x2F;2011&#x2F;10&#x2F;toyota-20111019.htm...</a>

Without talking in terms of energy (Watt.hours) it&#x27;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.

This probably isn&#x27;t the company to produce it, but it does look to me like solid-state lithium batteries are the next step forward in battery technology. Probably hitting mass-market production in at earliest in 2022 as far as I can see.<p>Longer term, my read is that fluorine-ion batteries are the most promising potential generational leap. But that these are only likely to be viable in solid-state form, as fluorine is more dangerous than lithium.

Imho it would be nice if this type of article didn&#x27;t always assume that everyone knows that The One True Voltage™ for battery cells is (just about) 3.7V (in this case 3.65V according to the picture).

What&#x27;s the capacity per gram, what about by volume? It&#x27;s too light on details.

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

Send it to Texas

In other news: Elon Musk buys Japan.