Live data from Hacker News

Toyota claims battery breakthrough in potential boost for electric cars

theguardian.com

11–20 of 116 posts

Re: Toyota claims battery breakthrough in potential boost for electric cars

#12

Time for our regularly scheduled monthly battery "breakthrough" PR campaign! Does this one walk on water?

It's a better battery bulletin, it has no legs

This is the first time I wish HN had emoji reactions. It would have been :drum:

Re: Toyota claims battery breakthrough in potential boost for electric cars

#13

Japanese firm believes it *could* make a solid-state battery... The key word here is obviously *could*. Add one more to the pile of claims and beliefs floating around that have yet to transform into viable products. I have been a Toyota fan from way back. I have owned a number of their vehicles. But in my mind, they lost a lot of technical credibility when they tried to apply political influence in a short sighted at…

Another key word is "Toyota" -- even if the battery tech is great, is Toyota really going to start making EVs or selling batteries? Japanese manufacturers have been dragging their feet on full EVs, possibly because the domestic Japanese grid can't really support EVs.

Re: Toyota claims battery breakthrough in potential boost for electric cars

#14

It’s funny seeing these battery breakthrough articles repeatedly. It’s been years of them now :) I’m always curious who the science writers are who can’t exercise critical thinking and ask a few tougher questions or review a battery breakthrough rubric.

Are you implying there haven't been any battery breakthroughs? What do you think the average capacity, density and cycle time of a battery in 2003 vs 2023 is.

Re: Toyota claims battery breakthrough in potential boost for electric cars

#15

Japanese firm believes it *could* make a solid-state battery... The key word here is obviously *could*. Add one more to the pile of claims and beliefs floating around that have yet to transform into viable products. I have been a Toyota fan from way back. I have owned a number of their vehicles. But in my mind, they lost a lot of technical credibility when they tried to apply political influence in a short sighted at…

Don't their hydrogen cars use fuel cells. Ie they use electric motors not ic engines

Re: Toyota claims battery breakthrough in potential boost for electric cars

#16

While Toyota has been busy looking for silver bullets that will solve imagined problems, Tesla has been scaling hard with good-enough technology. Their Q2'23 production is a hair under 2 million units per year, so they're already a mid-size OEM (the size of BMW, MB, Audi, etc).

Maybe Toyota does not want to compete in the luxury EV business because they do not see a profit for them. Toyota's success was not built on their luxury models.

Re: Toyota claims battery breakthrough in potential boost for electric cars

#17

Time for our regularly scheduled monthly battery "breakthrough" PR campaign! Does this one walk on water?

There's a cynical comment like this on every battery story, ignoring the fact that battery breakthroughs do exist, and that lithium ion energy density has ~tripled in the past decade.

Re: Toyota claims battery breakthrough in potential boost for electric cars

#18

It’s funny seeing these battery breakthrough articles repeatedly. It’s been years of them now :) I’m always curious who the science writers are who can’t exercise critical thinking and ask a few tougher questions or review a battery breakthrough rubric.

Are you implying there haven't been any battery breakthroughs? What do you think the average capacity, density and cycle time of a battery in 2003 vs 2023 is.

There has been a good gradual progress, and all the incremental improvements added up to much better batteries.

However, there regularly are press releases promising breakthroughs, but they either never reach production, or end up being one of the small incremental improvements, not a revolution.

Re: Toyota claims battery breakthrough in potential boost for electric cars

#19
post #13

Japanese firm believes it *could* make a solid-state battery... The key word here is obviously *could*. Add one more to the pile of claims and beliefs floating around that have yet to transform into viable products. I have been a Toyota fan from way back. I have owned a number of their vehicles. But in my mind, they lost a lot of technical credibility when they tried to apply political influence in a short sighted at…

Another key word is "Toyota" -- even if the battery tech is great, is Toyota really going to start making EVs or selling batteries? Japanese manufacturers have been dragging their feet on full EVs, possibly because the domestic Japanese grid can't really support EVs.

possibly because the domestic Japanese grid can't really support EVs.

The domestic grid has no impact on most Toyota/Japanese cars which are exported or built elsewhere --- often using engines made in Japan.

This was about saving a large segment of the Japanese economy which is centered around the internal combustion engine and associated expertise and know how.

https://cleantechnica.com/2021/11/15/toyotas-team-japan-aims...

Re: Toyota claims battery breakthrough in potential boost for electric cars

#20
post #5

a solid-state battery with a range of 1,200km (745 miles) that could charge in 10 minutes or less For that range I assume the battery holds 150 Wh/km * 1200 km = 180 kWh. Charging it in 10 minutes would require about 1.1 MW. That's a lot of Watts.

Probably not viable for the home, but maybe a super capacitor at service stations.
Post reply on HN