MG's Semi Solid State Battery

[MG Clive]

Coming soon. . . . . . .

 

[MG Clive]

Auto Express article - New MG4 Urban will be the UK’s first EV with semi-solid-state batteries

 

[salty]

Exciting times ahead for EVs. Can't wait to see what they are gonna come up with,
in the future. 5 mins for a full charge, 1000 mile range. Who knows.

 

[Rolfe]

I suppose the people who said, don't buy an EV yet, wait for them to get better, were right. They'll be right for a while yet, too. But why deny yourself the pleasure of EV motoring waiting for the technology to become absolutely mature? No matter how great the new cars are, my car will still be doing what I want it to do.

 

[salty]

That goes for everything not just cars. Can't be waiting, just get what you want, now!

 

[Rolfe]

That was the conclusion I came to. I'm actually glad I didn't end up in a 1st-gen Leaf or a battery-lease Zoe, but the MG4 is sufficient car to be going on with.

 

[Bam Bam]

Electrification is going to continue, so getting an EV now is better for future proofing than getting an ICE vehicle.

The big issue would be that the connectors no longer work.

As long as you can get electricity in the car it is fine.

But even then you can get adaptors and things. Harder to do for CHADEMO but there are even adaptors for that now.

Interestingly, I read that the UK car fleet is much older now than a few years ago. Is that as a result of...

1. People not being as well off. Wages stagnating while cost of living increases.
2. People holding off to wait for electric tech. or to see which way to go with these things. Decision paralysis
3. Other option?

What do you think?

 

[salty]

Can't see them changing from type 2 charging, think that would be the standard connection from now on. There's to many EVs and chargers already out there, to start, changing that.

 

[Bam Bam]

Can't see them changing from type 2 charging, think that would be the standard connection from now on. There's to many EVs and chargers already out there, to start, changing that.

Exactly. I don't think EV owners have anything to worry about in buying electric.

Some early cars were AC charging only, which is a big limitation on long distance journeys. Or use Chademo.

But as long as you've got CCS2 charging in the UK and Europe (like almost all do) you'll be fine.

However much faster future DC charging gets, our cars still work. The car will just limit the rate to the required speed.

 

[siteguru]

I'm perfectly happy with the (relatively slow) charging speed of my SE SR .. any faster and I won't have time to get both a pee and a coffee as the charging will have finished, so I'd have to go and move the car.

 

[MG Clive]

I'll put this in here because it's mainly related to the new battery technology. > MG Media centre.

 

[Rolfe]

I'm perfectly happy with the (relatively slow) charging speed of my SE SR .. any faster and I won't have time to get both a pee and a coffee as the charging will have finished, so I'd have to go and move the car.

Going all the way to the south coast I sometimes hanker after the LR, just because I want to get there before I'm embarrassingly late. And a couple of times when there were terrible holdups on the motorway and I would have liked the option to cut and run sooner, coffee or no coffee. But mostly I agree with you. There's something quite decadent about kicking back and relaxing over a snack because you know you can't go any sooner anyway.

 

[Bam Bam]

You can absolutely make the 51kWh battery work, I agree.

But, then again, for trips to see football matches we've gone in my Dad's diesel where time has been tight and charging stops would have made us late. If I had the new 64kWh I think the case for taking the electric would have been a lot stronger.

I think with diesel prices going up he'll agree to take my car to the next game!

 

[T1 Terry]

This is a bit of the blurb from the company that builds the semi solid state battery for MG

https://www.mitsui.com/mgssi/en/report/detail/__icsFiles/afieldfile/2025/03/27/2501btf_zhao_ishiguro_e.pdf

No spec figures, so testing of load capabilities before serious voltage drop over the SOC range is not available to us mere consumers, nor any cycle life testing, about the only thing tested was the "Burst into flame when run through with a needle" testing to see if it meets the new Chinese requirements ..... and this doco says it does ..... that explains the release date and move to this more expensive to make cell structure, yet still retain the NMC chemistry ..... yet to hear any verification regarding the discharge and frequent recharge figure .... are they still 20% to 80%?

I'm not sure what value to put on a battery that can only deliver 60% of its advertised capacity for anything but a single cycle trip, no recharging on the road ..... 64kwh for an NMC battery that you can only discharge to 20% SOC and recharge to 80% SOC, delivers only 38.5 useable kwh on any subsequent recharge on the road.....

T1 Terry

 

[boyfrom64]

I'm perfectly happy with the (relatively slow) charging speed of my SE SR .. any faster and I won't have time to get both a pee and a coffee as the charging will have finished, so I'd have to go and move the car.

Robert Llewellyn has said this many times and I agree.

 

[Gomev]

You can absolutely make the 51kWh battery work, I agree.

But, then again, for trips to see football matches we've gone in my Dad's diesel where time has been tight and charging stops would have made us late. If I had the new 64kWh I think the case for taking the electric would have been a lot stronger.

I think with diesel prices going up he'll agree to take my car to the next game!

We do footie trips and 64kWh in any make of car is sufficient to get us virtually anywhere non-stop, then fill up locally before the game (if needed) and park. Straight back home after the game. When I go with my s-i-l in his Tesla M3 it's no messing about stopping for breaks for him.
*recent trip from Leeds to Sunderland and back only a 180ish round trip so no charging at all. Those Teslas are so efficient steady 70-80 all the way when possible and still averaged well over 4 miles/kWh.