Battery tech breakthrough - fill up like you would a car

[mark sutton]

Not my first excitable post on battery tech breakthrough, but may be of interest all the same.

This looks rather exciting in terms of potential. Looks reasonable to produce and cost effective. Wouldn't take too much getting used to or infrastructure:
https://cyclingindustry.news/researchers-develop-cheap-eco-friendly-and-instantly-recharged-fluid-battery-technology/

 

[flecc]

Pre-charged electrolyte!!

The key words in the article are:

"It is theorised"

and I'm betting that's where it will remain.
.

 

[Fordulike]

After all the years of teasing the electric bike community with a breakthrough in battery technology, I really really believe this is the one

 

[Trevormonty]

This is not new technology, google flow batteries. What is new is use of single electrolyte.

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[Mal69]

A battery that can take advantage of cycling is one which recharges via pedal power, maybe throw in some solar too, doesn't have to fully recharge but if it gets a third more miles it would be useful.

 

[Danidl]

Pre-charged electrolyte!!

The key words in the article are:

"It is theorised"

and I'm betting that's where it will remain.
.

.. the good news is that this is not theoretical. Flow battery technology is well established and commercially available. Energy cycle from production to storage to consumption is good and worthwhile. The down side is that energy density and weight is not very good. The depleted reagent needs to be stored along with the fresh energised reagent, thus doubling the weight and volume. Perfectly good for static situations, like uninterrupted power supply UPS , where the weight is irrelevant and suitable for say locomotive use where the weight can be absorbed, but less so where weight is a concern.
To date the metals materials used have been rare , but interesting work using ferric chloride as the working fluid, which is dirt cheap are successful.. there is a lot of chlorine in the sea and a lot of iron in rocks.

 

[Fordulike]

After all the years of teasing the electric bike community with a breakthrough in battery technology, I really really believe this is the one

@VictoryV please please don't rush out and invest in this technology on my recommendation

 

[Danidl]

This is not new technology, google flow batteries. What is new is use of single electrolyte.

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Normal flow batteries use a single electroyte, it is just that its oxidisation state differs in the charged and discharged states.

 

[Woosh]

What is new is use of single electrolyte.

that's what they claimed.
In fact, there are currently about 15 systems based on membraneless flow.
TBH, would you want to fill your bike's battery of sulfuric acid instead of plugging it into a wall socket?

 

[Danidl]

A battery that can take advantage of cycling is one which recharges via pedal power, maybe throw in some solar too, doesn't have to fully recharge but if it gets a third more miles it would be useful.

.. there are a number of postings on that topic.. putting it simply, not worth it in energetics or financial terms for the cyclist to regenerate power by peddling Mind you if you can design a cheap cyclist cape fitted with solar PV giving 1 metre sq of collector, you could get most of the energy required...

 

[Woosh]

the main drawback of all the flow batteries is that unlike hydrogen or other biofuel cells, flow batteries use dangerous chemicals like bromine, sulfuric acid etc and they have low gravimetric capacity.

 

[flecc]

.. the good news is that this is not theoretical. Flow battery technology is well established and commercially available. Energy cycle from production to storage to consumption is good and worthwhile. The down side is that energy density and weight is not very good. The depleted reagent needs to be stored along with the fresh energised reagent, thus doubling the weight and volume. Perfectly good for static situations, like uninterrupted power supply UPS , where the weight is irrelevant and suitable for say locomotive use where the weight can be absorbed, but less so where weight is a concern.
To date the metals materials used have been rare , but interesting work using ferric chloride as the working fluid, which is dirt cheap are successful.. there is a lot of chlorine in the sea and a lot of iron in rocks.

You've made my point, the practicality in vehicle use is theoretical.
.