Western Australian battery technology company Altech Batteries has announced its first Cerenergy ABS60 salt-based battery energy storage system prototype is online and operating successfully across a range of temperatures, confirming its thermal stability and commercial viability.
its why their main benefit is cost and safety. for power storage in a standing field or wall density isnt as important compared to for mobile usages (EVs) so sodium based batteries make more sense.
There’s still room in car design for bigger batteries too. Could be used in cheaper electric cars with a less optimal power to weight ratio than LiFePO batteries would yield.
not saying they wont be used of course, just less optimal because the size and characteristics of the battery may be less ideal. for example, while salt ion batteries wear level decreases at a slower rate than Lithium ion based batteries, when salt ion batteries go bad, they suddenly stop working (e.g goes from a wear level of say like 60% to almost immediately zero) which is not the ideal situation to be in
I see a future where an EV will have two batteries each with different chemistries. An example would be to have LFP for the “main” battery which can take a beating but is less dense, and an additional NMC battery which gets used far less frequently, but is available for the less frequent long distance needs. This could also mean that when the LFP is dead from use, it can be replaced independent of the NMC which will have had a fraction of the charge/discharge cycles.
If you meant for a single car, that might be a bit lofty, but for options available it makes sense (ie different trim packages for single model sort of thing).
I see it breaking down as follows: Grocery-getter for an old couple won’t need much capacity. Just enough to get around town over the course of a day of needed and can plug in and fully charge overnight from a wall outlet. The other would be a battery capable of larger distances but needs a little bigger outlet to charge between stops of a long trip.
If you meant for a single car, that might be a bit lofty,
What difficulty do you see with this concept in a single car? This technically exists already as there are multiple charge controllers and BMS systems in EVs shipping today, they are just managing different modules of identical chemistries in the single car.
Not so much difficulty but practicality. I would see it being similar to having 2 gas tanks in a car where one is for a high octane fuel and the other for a low performance fuel like ethanol.
I would see it being similar to having 2 gas tanks in a car where one is for a high octane fuel and the other for a low performance fuel like ethanol.
And these exist completely separate to EVs. They’re called bi-fuel vehichles.
“How Do Bi-fuel Propane Vehicles Work? Bi-fuel propane vehicles typically use a spark-ignited internal combustion engine. A bi-fuel propane vehicle can use either gasoline or propane in the same internal combustion engine. Both fuels are stored on board and the driver can switch between the fuels. The vehicle is equipped with fuel tanks, fuel injection systems, and fuel lines for both fuels” source
They aren’t common in the USA because of they way emissions laws were written which made it uneconomical in many cases for auto makers.
There isn’t the same challenge in EVs, especially where we’re talking the “fuel” is just electricity which is common to both chemistry batteries. I see no challenge for EVs.
I was entirely unaware of this type of vehicle so my initial comment was made without considering them. If there is a market case for such a vehicle, then they would likely fall into that same category.
They aren’t common in the USA because of they way emissions laws were written which made it uneconomical in many cases for auto makers.
This has me insanely curious as to where these are common and what are their emissions laws. Time for a trip down a rabbit hole.
its why their main benefit is cost and safety. for power storage in a standing field or wall density isnt as important compared to for mobile usages (EVs) so sodium based batteries make more sense.
There’s still room in car design for bigger batteries too. Could be used in cheaper electric cars with a less optimal power to weight ratio than LiFePO batteries would yield.
not saying they wont be used of course, just less optimal because the size and characteristics of the battery may be less ideal. for example, while salt ion batteries wear level decreases at a slower rate than Lithium ion based batteries, when salt ion batteries go bad, they suddenly stop working (e.g goes from a wear level of say like 60% to almost immediately zero) which is not the ideal situation to be in
I see a future where an EV will have two batteries each with different chemistries. An example would be to have LFP for the “main” battery which can take a beating but is less dense, and an additional NMC battery which gets used far less frequently, but is available for the less frequent long distance needs. This could also mean that when the LFP is dead from use, it can be replaced independent of the NMC which will have had a fraction of the charge/discharge cycles.
If you meant for a single car, that might be a bit lofty, but for options available it makes sense (ie different trim packages for single model sort of thing).
I see it breaking down as follows: Grocery-getter for an old couple won’t need much capacity. Just enough to get around town over the course of a day of needed and can plug in and fully charge overnight from a wall outlet. The other would be a battery capable of larger distances but needs a little bigger outlet to charge between stops of a long trip.
What difficulty do you see with this concept in a single car? This technically exists already as there are multiple charge controllers and BMS systems in EVs shipping today, they are just managing different modules of identical chemistries in the single car.
Not so much difficulty but practicality. I would see it being similar to having 2 gas tanks in a car where one is for a high octane fuel and the other for a low performance fuel like ethanol.
And these exist completely separate to EVs. They’re called bi-fuel vehichles.
“How Do Bi-fuel Propane Vehicles Work? Bi-fuel propane vehicles typically use a spark-ignited internal combustion engine. A bi-fuel propane vehicle can use either gasoline or propane in the same internal combustion engine. Both fuels are stored on board and the driver can switch between the fuels. The vehicle is equipped with fuel tanks, fuel injection systems, and fuel lines for both fuels” source
They aren’t common in the USA because of they way emissions laws were written which made it uneconomical in many cases for auto makers.
There isn’t the same challenge in EVs, especially where we’re talking the “fuel” is just electricity which is common to both chemistry batteries. I see no challenge for EVs.
I was entirely unaware of this type of vehicle so my initial comment was made without considering them. If there is a market case for such a vehicle, then they would likely fall into that same category.
This has me insanely curious as to where these are common and what are their emissions laws. Time for a trip down a rabbit hole.