This horseshit again? Physical product available for independent analysis, or it didn’t happen.
It’s not like the Chinese are famous for lying about the specs on things they manufacture or anything. Every week we hear about some Chinese company poised to “revolutionize” the EV with pie-in-the-sky range figures and yet the market continues to remain resolutely un-revolutionized.
And as usual, this article harps on “range” as if that’s not an easily fudged figure. The real numbers we need to see are watts per volume, or watts per mass. And number of charge cycles tolerated, and how many before it loses what percentage of capacity. Any idiot can claim to make a 1,300 mile, 2,000 mile, 5,000 mile, 1,000,000 mile battery pack – just make the pack bigger, or the vehicle lighter, or both. That tells us nothing meaningful whatsoever about the battery chemistry itself. Advertising us what hypothetical ranges someone thinks a pack made of these “could” build is meaningless. We could build a 1300 mile battery pack right now with LiFePo cells if we wanted to, via the simple expedient of filling a dump truck with the things.
Exactly. It’s like an article I saw about some new internet tech that was “X times faster than broadband”. Broadband is a type of transmission using multiple frequency carrier waves to transmit data. It ain’t a speed.
Wh/kg or yes maybe volume Wh/cm^3…
The only other thing I’d care about it charge speed. Maybe it doesn’t last as long but I can fully charge in 10 seconds? Yeah I’m interested. Hell I’ve never had a car yet get the estimated miles per gallon on the sticker. It’s all bistromathics as far as I’m concerned.
I wish more forms of travel were based solely on bistromathics.
Shit I already have one up on the Chinese. I have invented an all electric rocket capable of boosting humans into LEO.
The real numbers we need to see are watts per volume, or watts per mass
You have to chase it down, following the link to electrek.co, but then it says: “the prototype cells house an energy density of 720 Wh/kg”
(of course, I’m just stating what is claimed, no idea how true)
Battery density has been improving steadily for the last three decades.
Battery costs keep falling while quality rises. As volumes increased, battery costs plummeted and energy density — a key metric of a battery’s quality — rose steadily. Over the past 30 years, battery costs have fallen by a dramatic 99 percent; meanwhile, the density of top-tier cells has risen fivefold
…
With regards to anodes, a number of chemistry changes have the potential to improve energy density (watt-hour per kilogram, or Wh/kg). For example, silicon can be used to replace all or some of the graphite in the anode in order to make it lighter and thus increase the energy density. Silicon-doped graphite already entered the market a few years ago, and now around 30% of anodes contain silicon. Another option is innovative lithium metal anodes, which could yield even greater energy density when they become commercially available.
What’s more, the Chinese market is both the leading producer and consumer of battery technology. So its weird to reflexively doubt that a Chinese firm would release a new higher-efficiency battery design.
Given that this is a prototype, its entirely unclear if the model is cost-efficient to mass manufacture or efficiently scalable based on available resources. But I’m hard pressed to discount the claim on its face simply because its got “China” in the headline.
I would instantly discount it based purely on not having third party verification or enough details for a third party to replicate.
Racist see China did something good and have to go out of their way to shit on China.
Its not even like “China” invented a new battery tech. It’s some battery plant in China which is the place where most batteries are created that’s innovated on a design.
There are battery plants in Atlanta, Georgia and Heide, Germany who are pursuing similar advancements. They just don’t have the money or the manpower equal to their Chinese peers.
Never to be heard about again
For some reason this reminds me of a cheap Chinese knockoff rotary tool I got from Amazon which the instructions said: “use until loud bang and smoke. Then replace.”
Takes deep breath
MmmmmmBULLSHIII
Ha, why was this downvoted? Sketchy website “reports” proprietary Chinese research firm’s accomplishment by rehashing the firm’s press release about an unbelievable claim with no other evidence. This got more red flags than the beach before a hurricane.
At best, this is something they actually did approximate in some kind of lab setting that might be years and years away from being some kind of marketable product.
The (translated) press release even has a stench all on its own:
It is expected to fundamentally solve the battery life and safety anxiety of traditional lithium-ion batteries.
FYI thecooldown.com is a solid site with consistently good info.
I haven’t dug into this particular story though.
There are plenty of petrobots here ready to cast shade.
Good to know; first time I’ve come across this website.
Powered by the cold fusion process they unveiled last year.
If the company is able to scale this technology large enough for consumer vehicles while keeping prices down, it could easily double the range of the farthest-driving EVs on the road today.
That’s a big IF. TL;DR: They haven’t developed a means of making this scalable and able to be mass manufactured. Until they do, this is another “revolutionary” battery tech that may or may not actually be used due to cost of production. Most likely in the “not” category.
If you want to make EVs more popular, make them with Sodium-Ion batteries that are cheaper than ICE vehicles. They’ll sell better as a result.
Hardly anybody needs an EV with more than 200 miles of range if they’re plugging in each night. Most people’s commute is round-trip sub-50 miles. “Range anxiety” is 95%+ of the time a “problem” that stupid people have for their theoretical future that never actually happens. Most people are impractical idiots.
Range anxiety isn’t about your daily commute, it’s about the few times a year road trip you make across multiple states to see family on holidays. Having to stop and charge every 150 miles (as I wouldn’t trust letting it go below 50) sucks if you’re trying to go 500+ miles. Owning a gas car taking up space in your garage and costing you taxes and registration just to use a handful of times a year is wasteful. Renting a car is an option, but it’s cumbersome and if you plan to stay a while, expensive. I would not want an EV with less than 300 miles range. You have to factor in worst case scenarios as well, sometimes it gets dreadfully cold and windy in the winter. When it’s -10F and the wind is howling you’re cranking the (usually resistive) heat and driving head first into the wind kills your efficiency. These are real scenarios I have had to drive in my current car (Volt, so plug in hybrid) and my battery range can be halved (from 35+ miles under 20) in these worst case scenarios, but at least I can fall back on gas. I want to go EV for my next car but if I can’t reliably make it to and from my parents’ house 300 miles away on a bad winter’s Christmas break then it’s just not a feasible option yet, even if my drive to work is maybe 15 miles round trip. Also, charging station density is an issue. I would need to go half way to their house, 150 miles, to reach a charging station. You can’t just stop anywhere to recharge if you have a low range EV.
Hardly anybody needs an EV with more than 200 miles of range if they’re plugging in each night.
Speaking of big IFs. Not everybody lives where a charger is convenient or can have one installed in their residence.
Most people have the option of plugging in where they live and/or work. The only argument would be for apartment complexes. Townhouses, single family homes, etc. are easy to switch to electric.
Range anxiety is in the what if scenario, can I go from Los Angeles to Las Vegas on one charge, batteries need to last longer and be cheaper or charge quicker. being universal and swappable wouldalso work.
Or you could just get a Plug-in Hybrid, if that’s a concern.
Take EVs out of the equation and the ramifications of this tech (or Toyota’s) is huge, if true.
Imagine an electric wheelchair you only had to charge monthly, or that could run on one charge effectively forever.
First they need Toyota to test their chemistry and develop their battery production system…it’s part of the way Chinese companies develop technology.
If Toyota can do it, China will too! A win-win!
A couple of years ago I saw an article on Toyota inventing something called solid state battery’s… Never heard anything about that again.
Every day a new revolutionary battery. Where in reality
Over the past 30 years, battery costs have fallen by a dramatic 99 percent; meanwhile, the density of top-tier cells has risen fivefold
No
i wonder if/how the EU and US would trust China not to remotely turn massive fleets of electric smart cars into suicide bonbers.
Has China done that before? How does a battery seize control of a parent device when it is only connected by power wires?
china doesnt just make batteries of course.
slapping a large fuel tank full of petroleum
Good thing we’re playing it safe.
Its kind of insane that EV manufacturers are making battery packs out of a lot of individual cells, rather than one integrated unit like this.
That’s how battery chemistry works. Even this, if it is real, is a bunch of individual cells in a bank. There is no alternative; you can’t have sufficient reactivity between dissimilar materials to generate the types of voltages required in a single cell. You need multiples of them in series to hit 200 volts, 400, 600, whatever is required by the vehicle’s drive hardware.
Batteries, being containers for chemical reactions, are subject to the core concepts of chemistry. Namely, that increased surface area increases the speed of the reaction. You could make one enormous battery instead of multiple smaller cells, but you’d never get it to discharge fast enough to make it functionally useful.
Like the other responses, the battery chemistry and design voltage are the major reasons for cell sizes, but also, smaller cells means they can be isolated if necessary.
In a Tesla battery pack for instance, each cell is connected by a single small wire that also doubles as a fuse. If there is an issue with the cell the wire will heat up and break. opening the circuit and separating that battery cell from the rest of the pack. This also means that a failed cell doesn’t take out a significant portion of battery capacity. Other manufacturers do this as well, but not all, and some implement similar capability in other ways. This method functions as a sort of “passive” option since it doesn’t require the BMS to make a decision to remove those bad batteries from the pack, physics just does it and the BMS adjusts to compensate when the cell no longer is connected.
Good battery management systems that handle things like charge leveling individual cells, can mean the difference between batteries degrading noticeably in a few years and the pack as a whole lasting a decade before that noticeable degradation. There are a lot of poor battery management systems on the market, EVs are no exception and if anything they make this issue more noticeable because of the increased usage.
