mateusleo
1 kW
Hello Folks,
My colleagues and I, maintained by our university, are trying to build and eletric race car for Formula SAE Student. We are actually struggling with the battery, because it's kinda hard to import stuff with government money in Brazil, also, its hard to find a company that builds us the pack. We firstly meant to use LiPo, with BMS ofcourse, but we couldn't find who would bult it. The voltage limit on this competition is 300V, we cannot draw more than 80kW from the battery, but we could draw as much as we could from capacitors, but those are out of our primary plans. Our motor is going to take average 60kW, so we need a battery that can supply something arround 150-200A continous. We also plan to have a pack that can be charged for more than 300V, and only charge it to this limit, so we get a more flat voltage slope during the discharge process. It needs to be as light as possible, which doesn't mean we want LiPo, we have agreed to sacrifice some weight in order to get a safely battery. For example, if using LiFePO4, we would make it 88 series (hypothetical) and only charge it to 300V(3,4V/Cell), not to 316,8V(3,6V/Cell).
Well, the main purpose of this post is get reference about companies that could build us the pack we need, any chemistry will be analised. It must be a reliable supplier, with good reputation. So, suggestions will be really appreciated.
Mateus.
My colleagues and I, maintained by our university, are trying to build and eletric race car for Formula SAE Student. We are actually struggling with the battery, because it's kinda hard to import stuff with government money in Brazil, also, its hard to find a company that builds us the pack. We firstly meant to use LiPo, with BMS ofcourse, but we couldn't find who would bult it. The voltage limit on this competition is 300V, we cannot draw more than 80kW from the battery, but we could draw as much as we could from capacitors, but those are out of our primary plans. Our motor is going to take average 60kW, so we need a battery that can supply something arround 150-200A continous. We also plan to have a pack that can be charged for more than 300V, and only charge it to this limit, so we get a more flat voltage slope during the discharge process. It needs to be as light as possible, which doesn't mean we want LiPo, we have agreed to sacrifice some weight in order to get a safely battery. For example, if using LiFePO4, we would make it 88 series (hypothetical) and only charge it to 300V(3,4V/Cell), not to 316,8V(3,6V/Cell).
Well, the main purpose of this post is get reference about companies that could build us the pack we need, any chemistry will be analised. It must be a reliable supplier, with good reputation. So, suggestions will be really appreciated.
Mateus.