MG to introduce solid-state batteries in Q2 2025 - over a year ahead of schedule!

MG to launch first electric car with solid-state battery in 2025 | Autocar

MG parent SAIC accelerates cheaper, more energy-dense batteries and the first is due in a production EV next year

www.autocar.co.uk

 

[Data]

You're forgetting that solid state batteries will have a higher energy density (kWh/kg) than current batteries.
So, a solid state battery of the same physical size & weight as your MG5s might be over 100kWh.
There are already a bank of 480kW chargers on the approach to Blackpool, and 1-1.2MW chargers are already being deployed overseas.

I think I read that we have a couple of 1 mega watt chargers already somewhere over here. There was a video about them iirc.

 

[WonkoTheSaneUK]

I think I read that we have a couple of 1 mega watt chargers already somewhere over here. There was a video about them iirc.

Yes. I think they've been installed for e-HGVs.

 

[JimD]

You're forgetting that solid state batteries will have a higher energy density (kWh/kg) than current batteries.
So, a solid state battery of the same physical size & weight as your MG5s might be over 100kWh.
There are already a bank of 480kW chargers on the approach to Blackpool, and 1-1.2MW chargers are already being deployed overseas.

I didn't know about the 480kW chargers already out in the wild.

For the purposes of this discussion, the capacity of the battery is what matters, not it's physical size and weight.

 

[WonkoTheSaneUK]

For the purposes of this discussion, the capacity of the battery is what matters, not it's physical size and weight.

I feel that the pack's physical size and weight does matter. That's what defines the battery's energy density.

The Nissan Leaf & Renault Zoe have had 3 "sizes" of battery pack (20/30-ish, 40-ish & 50/60-ish), but all were physically the same size and weight. The increased capacity was due to battery chemistry improvements over the past 15 years.

IMHO, manufacturers will use solid-state batteries in one of 2 ways.

• Increased range for a given battery pack size and weight
• Reduced pack size and weight for a given range

 

[Caramaddy]

Not sure it will feature in the new MGS6 ?

 

[WonkoTheSaneUK]

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[JimD]

I feel that the pack's physical size and weight does matter. That's what defines the battery's energy density.

The Nissan Leaf & Renault Zoe have had 3 "sizes" of battery pack (20/30-ish, 40-ish & 50/60-ish), but all were physically the same size and weight. The increased capacity was due to battery chemistry improvements over the past 15 years.

IMHO, manufacturers will use solid-state batteries in one of 2 ways.

• Increased range for a given battery pack size and weight
• Reduced pack size and weight for a given range

I meant that my post was a reply to a comment about charging time and power only. For that purpose, the size & energy density is irrelevant.

 

[Pete G]

Not sure where you've plucked those figures from, but you're mixing up your kw with your kwh.

My MG5 battery is 60kwh and will go about 200 miles. Say a 1000km (about 620m) would need to be 200 kwh, you would need 200kwh of energy to charge it from zero to full. To charge in 8 minutes you'd need a 1.5mw charger (ignoring efficiency losses).

Current chargers go up tp 350kw so they'd need to be about 4 times as powerful - it doesn't sound that outrageous to me.

EDIT: with a 350kw charger, it would take about 20m to charge from 20 to 80%.

Hi Jim I got the figures from extrapolating on my ZS. It has a 44kWh battery and does around 250 kilometres with a full charge.
UK is a small country, so maybe your power grid is more accessible because of short distances involved.
Here in Australia distances are much longer, so the power lines don't have as much capacity out in the country areas. Installing 1.5 megawatt chargers would be a major drain on small towns' power supplies.
Pete

 

[Bam Bam]

Hi Jim I got the figures from extrapolating on my ZS. It has a 44kWh battery and does around 250 kilometres with a full charge.
UK is a small country, so maybe your power grid is more accessible because of short distances involved.
Here in Australia distances are much longer, so the power lines don't have as much capacity out in the country areas. Installing 1.5 megawatt chargers would be a major drain on small towns' power supplies.
Pete

You're seeing the initial building of solar farms and EV charging hubs in places near the existing power grid.

Where a high voltage supply goes over a main road, that is a place to consider building a connection.

In the UK (England and a few parts of Wales and Scotland) we are pretty densely populated, so there is no doubt good grid coverage.

However, would expect in Australia the high voltage routes follow the highways because you are connecting up the regional centres.

Maybe Tasmania will be different as it is an island which has a spine link rather than a circuit around the edge.