Solid Lithium Battery Development

[autorouter]

The lithium battery commonly available now has a liquid or gel electrolyte (that's the working part of the battery). A new development is to make a lithium battery with a solid electrolyte.
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There are many advantages. The energy density is higher, which means that for the same capacity the battery will be smaller and lighter.

The maximum charge rate is higher, so it can be recharged faster. A 100 amp-hour battery could be recharged at 50 amps, so it could go from 50% to 100% in one hour.

On top of all that, the number of charge/discharge cycles is improved, and there is no leakage or flammability problem

They are being developed for electric vehicles, but they are just the thing for habitation batteries too.

They can be made on the same production line as standard lithium batteries, with some small mods.

 

[Camping Gaza]

Light Sabre technology just took another small step forward. ?

 

[Robert Clark]

The BIG problem with lithium batteries

They are just so BORING

Used to spend endless hours watching my 6 lead acid batteries on our battery monitor, slowly charging, then charging even slower when they went into absorbtion phase

Would they get to fully charged before the sun set and the solar stopped working???

Switched to two 100A lithium’s last year

Hardly ever check their state of charge

Have switched to an electric kettle now to save gas

 

[Theonlysue]

I understand that any temps below zero is dangerous for the battery.
What do you do if mh in storage over really cold weather? (minus 12 at Shewsbury a couple of years ago).

 

[Pausim]

The recommended charge rate for my Relion LiFePO4 is already 0.5C (50A into 100Ah battery) with a maximum charge rate of 1C (100A into 100Ah battery). However further weight and size reduction would be progress.

I understand that any temps below zero is dangerous for the battery.
What do you do if mh in storage over really cold weather? (minus 12 at Shewsbury a couple of years ago).

As for freezing temperatures it is only charging below freezing that is a problem and the battery management system should protect it from this. Storage and discharge are ok down to minus 20.

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[Lenny HB]

I understand that any temps below zero is dangerous for the battery.
What do you do if mh in storage over really cold weather? (minus 12 at Shewsbury a couple of years ago).

One thing that always concerns me about them (apart from the price). Not too bad at home but still means you would have to turn the heating on before you can charge the batteries. I suppose in storage they won't come to much harm as the BMS won't allow them to charge if it's too cold & their self discharge rate is very low but you would still have some of the vans systems drawing power. Probably not a problem left for a few weeks.

 

[jongood]

I understand that any temps below zero is dangerous for the battery.
What do you do if mh in storage over really cold weather? (minus 12 at Shewsbury a couple of years ago).

In the arto they are within the double floor so well insulated.

 

[Pausim]

One thing that always concerns me about them (apart from the price). Not too bad at home but still means you would have to turn the heating on before you can charge the batteries. I suppose in storage they won't come to much harm as the BMS won't allow them to charge if it's too cold & their self discharge rate is very low but you would still have some of the vans systems drawing power. Probably not a problem left for a few weeks.

I Have an isolator fitted to mine. After 2/3 months of ignoring it, it still showed 13.7V and it is easy to fire up the heating, which includes the battery compartment.

 

[funflair]

One thing that always concerns me about them (apart from the price). Not too bad at home but still means you would have to turn the heating on before you can charge the batteries. I suppose in storage they won't come to much harm as the BMS won't allow them to charge if it's too cold & their self discharge rate is very low but you would still have some of the vans systems drawing power. Probably not a problem left for a few weeks.

I think some of them have built in heating to allow them to be charged during very cold temperatures.

Can't remember where I read it.

Martin

 

[Robert Clark]

I think some of them have built in heating to allow them to be charged during very cold temperatures.

Can't remember where I read it.

Martin

Think Sunamp do heating systems for lithium automotive batteries

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[Pausim]

I think some of them have built in heating to allow them to be charged during very cold temperatures.

Can't remember where I read it.

Martin

Relion have introduced one with internal heating elements. If it receives a charge current but is below freezing it diverts the current to the heating elements until an acceptable temperature is reached.

 

[BigClick]

I have an i3 and the batteries condition themselves from the supply before charging