Coordinated with Fredrik

The Battery Is the Bucket


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On February 18th, 1745, in Como, Italy, a child was born who would quietly alter the trajectory of civilization.

Two centuries later, the unit of electric potential — the volt — would carry his name.

But the real story doesn’t begin with a nobleman in northern Italy.It begins with a dead frog.

In the late 1700s, Luigi Galvani observed something uncanny: a dissected frog’s leg twitching violently when touched with two different metals. He believed he had discovered animal electricity — a vital force inside living tissue.

Alessandro Volta disagreed.

Volta argued the frog wasn’t the source of the electricity. It was merely a conductor — a wet, salty bridge between two metals. To prove it, in 1800 he stacked alternating discs of zinc and copper separated by brine-soaked cardboard. When he connected the top and bottom, current flowed — continuously.

Not a spark. Not static.A steady stream.

The world’s first battery.

That stack of metal and wet paper — the voltaic pile — was the ancestor of every lithium-ion pack on Earth today.

And I believe we are living through a moment just as significant as that day in 1800.

The Constraint That Shaped 300 Years

For three centuries, our civilization has had one fundamental limitation:

We could produce energy.But we could not store it.

Electricity had to be used the exact second it was generated. The grid had to balance supply and demand every millisecond. Turn on a light, and somewhere a gas turbine spins slightly faster.

We were tethered to fuel.

Batteries cut the tether.

Energy storage is not a convenience feature. It is a structural transformation.

For the first time in history, we can decouple energy production from energy consumption at scale.

And the cost curves are collapsing.

In 2010, lithium-ion battery packs cost around $1,100 per kilowatt-hour.In early 2026, they sit around $108 per kilowatt-hour.

A 93% drop.

If your rent or groceries had dropped 93% in fifteen years, you would live in a different world.

This is not incremental improvement.

This is the precondition for energy abundance.

Why Batteries Were Stuck for a Century

From roughly 1860 to 1990, battery energy density barely doubled. Over a century of stagnation.

Why?

Because batteries don’t follow Moore’s Law.

A computer chip moves electrons — nearly massless particles. You can miniaturize pathways for electrons endlessly.

A battery moves ions.Lithium ions. Sodium ions. Lead ions.

Ions are physical objects with mass and volume. You cannot shrink atoms. If you want more energy, you need more material.

You are constrained by thermodynamics — by the chemical bonds themselves.

That’s why gasoline dominated the 20th century.

One kilogram of gasoline holds around 12,000 watt-hours of energy.A kilogram of early lead-acid batteries held maybe 30.

Physics was ruthless.

Until lithium-ion.

The Three-Person Relay That Changed Everything

Lithium-ion wasn’t one breakthrough. It was a relay race across decades.

* M. Stanley Whittingham discovered intercalation — lithium ions sliding between layers of a crystal without destroying it.

* John Goodenough doubled the voltage by introducing lithium cobalt oxide.

* Akira Yoshino removed volatile lithium metal and replaced it with carbon, making the system safe.

And in 1991, Sony commercialized it.

Not in a car.

In a camcorder.

The early lithium-ion battery cost about $7,500 per kilowatt-hour. Astronomical. But consumers weren’t buying energy — they were buying memories. Longer filming time. Portability. Experience.

Consumer electronics funded the factories.

Your old camcorder paid for the battery in your EV.

The Learning Curve Miracle

The collapse in battery prices is not random. It follows Wright’s Law: every time cumulative production doubles, costs fall by a predictable percentage.

For lithium-ion, that learning rate sits roughly between 18% and 28%.

Gigafactories didn’t just scale production — they accelerated learning. Thousands of micro-improvements: thinner foils, faster rollers, optimized coatings, better yields.

China’s massive overcapacity — often criticized — has actually intensified price competition and accelerated cost decline.

This is how revolutions compound.

The Chemistries of Abundance

Lithium-ion is no longer one chemistry.

The future is diversification toward abundance.

LFP — Lithium Iron Phosphate

* No cobalt.

* No nickel.

* Iron and phosphate — cheap, globally abundant.

* Longer lifespan (thousands of cycles).

* Much safer thermal characteristics.

Modern cell-to-pack designs have compensated for lower cell energy density through structural innovation.

LFP is no longer the “cheap and weak” option. It’s becoming the workhorse of global electrification.

Sodium-Ion

Sodium is everywhere. It’s in salt. In oceans. In the Earth’s crust.

It’s not energy-dense enough for high-performance cars yet, but for:

* City vehicles

* Scooters

* Grid storage

* Cold climates

It’s extraordinary.

It can be shipped at zero volts. It performs well at extreme cold. It avoids many supply-chain bottlenecks.

This is true materials abundance.

Iron-Air

For grid-scale, long-duration storage, iron-air may be transformative.

It literally rusts and unrusts iron to store energy.

Heavy. Slow. Perfect for the grid.

Target cost: around $20 per kilowatt-hour.

At those prices, storage becomes almost infrastructural — like concrete.

The Grid Is Already Changing

This is not theoretical.

In California, batteries have become the largest contributor during evening peak demand. They are flattening the infamous duck curve by storing midday solar and discharging after sunset.

China installed staggering amounts of storage capacity in 2025.

Saudi Arabia and Abu Dhabi are building solar-plus-storage systems designed for 24/7 dispatchability.

The old critique — “renewables are intermittent” — weakens when storage becomes cheap.

At projected costs of $32–$54 per kilowatt-hour by 2030, building new solar-plus-storage may become cheaper than fueling existing gas plants.

That’s not moral persuasion.

That’s spreadsheet logic.

Energy Abundance and the Jevons Question

There is a paradox in economics: as efficiency improves, consumption often increases.

If energy becomes cheap, we will use more of it.

That is not necessarily a problem.

Cheap energy enables:

* Desalination at scale.

* Industrial recycling.

* Indoor agriculture.

* AI infrastructure.

* Material synthesis.

* Climate adaptation technologies.

Every time energy became cheaper in history — from wood to coal to oil — human living standards rose.

The difference now is that the primary source is stellar.

The sun sends 173,000 terawatts to Earth continuously.

The constraint was never generation.

It was storage.

Circularity and Resilience

A “dead” battery is not waste. It is high-grade ore.

Battery recycling can recover over 95% of critical materials. Before recycling, batteries can serve second-life roles in stationary storage.

We move from extractive mining toward circular supply chains.

Add AI into this ecosystem — optimizing dispatch, predicting degradation, orchestrating millions of distributed assets — and the system becomes self-balancing.

An Internet of Energy.

The Bigger Frame

Civilization is a heat engine.

For thousands of years, that engine ran by burning things.

Now we are transitioning to storing sunlight.

The battery is the bucket.

And we are learning to make buckets from iron, sodium, carbon — from common materials, not rare ones.

When energy becomes abundant:

* Water can become abundant.

* Food can become abundant.

* Computation can become abundant.

* Intelligence can become abundant.

This isn’t utopian thinking.

It’s where the cost curves point.

The next time you charge your phone, plug in your car, or see a solar panel on a roof — don’t just see a device.

See the early architecture of a civilization untethered from combustion.

Volta would be shocked.

And we’re just getting started.



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Coordinated with FredrikBy Fredrik Ahlgren