Looking into building a replacement battery design for
The 2gen prius, with 5 cells per block I.e 16 V nominal per block the prius would monitor each of the 14 blocks.
Total nominal voltage would be 224 V discharge would be about 100 A maybe 133.6 A intermittently 133.6 is the max designed draw for the prius and i so a 10 C discharge would be required, unless I go with 20 Ah the it be more like 7 C.
What batteries would be most cost efficient for the job, plan is to also plug-in the pack and charge it intermittently to about 90-95% that's when major balancing work would take place.
The original space is about 550mmx260mmx105mm
For 28 modules I.e but each 5 cell block or multiple of 5 cells would need to fit in approximately a space of 260mm x 39.28mm x 105mm I.e two modules space can anyone tell me if this could be done and if so with which cells, I could wire the blocks in a different arrangement however the overall volume does not leave much wiggle room unless I abandoned the internal squeeze frame in which case I could gain 40 mm total so about 3mm each twomoduleblock 42 instead of 39 and maybe 20 mm in height. But would be better if I could avoid this.
Can some people here give me some input, the high C rate is probably the biggest catch.
terramir
PS: intermittent charge rates will be about the same as well, but honestly if not charged by wall I assume the SOC of this battery with 70 cells will probably not exceed 60 % more like around 50 on average going back and forth.
The 2gen prius, with 5 cells per block I.e 16 V nominal per block the prius would monitor each of the 14 blocks.
Total nominal voltage would be 224 V discharge would be about 100 A maybe 133.6 A intermittently 133.6 is the max designed draw for the prius and i so a 10 C discharge would be required, unless I go with 20 Ah the it be more like 7 C.
What batteries would be most cost efficient for the job, plan is to also plug-in the pack and charge it intermittently to about 90-95% that's when major balancing work would take place.
The original space is about 550mmx260mmx105mm
For 28 modules I.e but each 5 cell block or multiple of 5 cells would need to fit in approximately a space of 260mm x 39.28mm x 105mm I.e two modules space can anyone tell me if this could be done and if so with which cells, I could wire the blocks in a different arrangement however the overall volume does not leave much wiggle room unless I abandoned the internal squeeze frame in which case I could gain 40 mm total so about 3mm each twomoduleblock 42 instead of 39 and maybe 20 mm in height. But would be better if I could avoid this.
Can some people here give me some input, the high C rate is probably the biggest catch.
terramir
PS: intermittent charge rates will be about the same as well, but honestly if not charged by wall I assume the SOC of this battery with 70 cells will probably not exceed 60 % more like around 50 on average going back and forth.
