Endless Sphere

We ordered a 2020 Hyundai Ioniq (38 kWh battery, 350 km town range and ~270 km highway). Was supposed to arrive next week but thanks to a certain pandemic it will be more like late May :( Ask for a discount :wink: We already got $3k off the sticker price - $49,990 on the road. Worth a shot though.

We ordered a 2020 Hyundai Ioniq (38 kWh battery, 350 km town range and ~270 km highway).
Was supposed to arrive next week but thanks to a certain pandemic it will be more like late May

Oh right, that dumpster fire...

Dauntless wrote: ↑

Mar 18 2020 5:43pm

Ianhill wrote: ↑

Mar 18 2020 1:07pm

This thread sounds so privileged it's beyond. . . .

Which thread? Sounds like a lark

My understanding with PV panels is that a series string can be paralleled with another series string, and the combined output can be fed into an MPPT controller. But if you were to add a third one in parallel, a fuse is required on all series strings. Diodes aren't exactly necessary because panels h...

Cheers! Yeah not likely to be building anything for the next few months. Certainly not when the exchange rate is rubbish.
This battery design is the product of shared knowledge. And that's why I love ES

Hillhater wrote: ↑

Mar 19 2020 5:52am

It would take impossibly huge amounts of ...

Like refined oil for automobiles? Cement for our cities? Bitumen for our motorways? Wireless internet telephones? Food for our population?

We never seem to think a technology will take off when it seems far so off. Until we do.

If you are going to use a shunt, always mount it as close to battery (-) as possible. Other instruments might need a 0 volt reference, and you don't want to get that messed up.

That's a solid innings, and you're still at the crease! Well done.

This sounds pretty good. Would you be able to show me where you purchase your cells from? Or even a price for how much it costs for you to build one for me? I'd be happy to build you one. But you won't be happy to pay for it. AUD is in the shitter right now, and the Pacific Peso is no better. If yo...

That government paper was from almost 10 years ago. I'd disregards it's conclusions for anything other than historical amusement.

Its not that easy. 60-80% of the power needed is continuous, reliable, “Base Load” , which even the most advanced RE powered industrialised countries have realised cannot come from Wind, solar , hydro, or any combination of them with batteries or pumps etc.. You have got to have a source that you c...

Check out the kits on sale at EV-Power.com.au
Rod has a good selection of gear and sounds like it's probably ideal for your situation.
Do, however read up on electricity and the significance of more than just voltage You have much to learn.
Enjoy!

Pretty sure that you can't use interruptions on PV like that. You can use a manual isolator. In a dead short situation, PV just maxes out at Imax and stays there. But you can put a shunt trip in which is activated by something other than current, like a thermostat perhaps. Still not sure why you wou...

Pretty sure we can do both. Existing nuclear nations are well placed to do this. Nations who don't already have this complex, expensive industrial ecosystem in place would be better placed exploiting the zero emissions options they already have (batteries, pumped hydro, solar, wind).

2000 Wh, at a nominal 72 V suggests 27 Ah. A 72 V, 30 Ah pack (20s,6p) battery made from 35C cont, 60 C peak LiPo pouch cells might measure 260 mm tall, 170 mm wide and 215 mm long, and weigh about 16 kg. It will dish out almost 1000 amps if the conductors were up to it. Look up Sketch Coleman's ele...

If you want bulk power as a priority and don't mind spending a bit, LiPo pouches are the best.
Those Sammy 30Qs will sag pretty badly and get hot. They would last about as long as pouches in terms of cycle life.

Will be interesting to see if they have some new formulations up their sleeves. The Maxwell process will add power and good thermal properties to the resume, while electrolyte formulations will enhance safety and cycle life. LG is doing some good stuff, so GM might be OK. Just a shame they won't mak...

Simple and effective. Love it!

Quick update. The air conditioning compressor has been powered down with a PWM generator which reduces the energy consumption down to about 2 kW while delivering the same cooling power as before, so that's a win. The cell cooling power is awesome and works great. Got the front-rear weight bias and t...

As long as you can access every cell terminal you can apply any BMS you like. Just make sure the cell count matches.

These projects are big and expensive. Chances are life got in the way.

Yes, exactly that.

Both battery packs look solid. Fully potted wire-bonded battery pack is about as bombproof as you can make them.

Hi All, Just thought I'd follow up with this thread. My work bought the Minder Hightech welder with conveyer for long packs. http://minder-hightech.com/ProDetails.asp?ID=420 It came to about AUD$100k landed, which is well less than the ~$300k on offer by Hesse and the like. However, you can have any...