niobium tungsten oxides

[oyster]

Cheap material could radically improve battery charging speed, say scientists
Discovery could accelerate adoption of electric cars and solar energy, as well as helping to recharge your smartphone in minutes
https://www.theguardian.com/science/2018/jul/25/cheap-material-could-radically-improve-battery-charging-speed-say-scientists

Knowing me, this has probably been understood for years... Nonetheless, looks interesting. (Mind, charging is already fast enough for my needs. Ride bike, put in garage, charge if needed.)

 

[Woosh]

I don't know how soon you can charge your 500WH battery in under 1 minute but that implies that the mains socket has to deliver at least 30KW. Just imagine the size of a domestic 30KW charger!

 

[oyster]

I don't know how soon you can charge your 500WH battery in under 1 minute but that implies that the mains socket has to deliver at least 30KW. Just imagine the size of a domestic 30KW charger!

Perhaps we'll just plug our ebikes into electric car chargers...

 

[Woosh]

one of those fast e-car charger is installed in London Road, Southend, opposite Sainsbury's. It seems quite popular, always in use every time I walk passed it.

 

[flecc]

Cheap material could radically improve battery charging speed, say scientists
Discovery could accelerate adoption of electric cars and solar energy, as well as helping to recharge your smartphone in minutes
https://www.theguardian.com/science/2018/jul/25/cheap-material-could-radically-improve-battery-charging-speed-say-scientists

Knowing me, this has probably been understood for years... Nonetheless, looks interesting. (Mind, charging is already fast enough for my needs. Ride bike, put in garage, charge if needed.)

Radical battery advances are like medical ones, announced weekly, always about five years of research away, and never materialising. Basically they are grant raisers to keep institutes going.

In any case the trouble with fast charging is that it's usually directly related to battery life, the quicker the charge, the shorter the battery life. That's why rapid car chargers charge only to 80% and why the new Nissan Leaf is program limited to two rapid charges in a single long journey, dropping back to a slow charge at a third attempt.
.

 

[Woosh]

If I understand correctly, this announcement was about using it to make ceramic separators in Lithium batteries.

QUOTE:

Ceramic Separators: Key Features & Benefits

• Proven to be highly suitable for high-power (150 C) and high temperature (over 100°C) battery applications.
• Fully compatible with a range of processing technologies including stacking, winding and z-folding.
• Features superior wettability, which allows for the faster & more uniform absorption of electrolyte.
• Demonstrates great resistance in typical abuse scenarios. (Nail penetration test)
• Minimal shrinkage – less than 1% of shrinkage occurs after 24 hours at 200°C.
• Enables the fast & thorough drying of stacks / jelly rolls at 130°C and above.
• Ultra-long life cycle & calendar life. (up to 9000 cycles at 100% DoD)
• Retains mechanical integrity in high heat, up to 240°C.
• Qualified for use in automotive industry applications.

 

[gray198]

thought I read somewhere that graphene was going to be a major step forward in battery technology

 

[flecc]

thought I read somewhere that graphene was going to be a major step forward in battery technology

Or carbon nanotubes, or anything else that someone dreams up as a vague possibility which might earn a research grant.

Meanwhile the companies that make the things just keep on making them steadily better. My new car battery a case in point. Nine years ago it started at 24 kW/h, three years or so ago grew to 30 kWh, now 40 kWh and next year 63 kWh, all in the same volume and shape without a word about the chemical technologies involved.
.

 

[Woosh]

I must say nobody pays any attention putting petrol in the tank and it's hard to imagine plugging your car into a 10C, 300KW charger leave alone plugging your car to a 100C, 3MW charger!
The mind boggles and yet, progress is leading that way, maybe one day we'd just pop into a shop to buy a ZPM for our personal transport.