Battery Brief

Batteries, energy storage, and the science behind the headlines. News, analysis, and engineering deep dives. Follow for the signal and the science. 🔋

[Battery Brief @batterybriefs]

The N/P ratio you design on paper isn’t the one your cell ships with.

It’s not a fixed number. It’s a distribution, and manufacturing tolerance alone can shift it more than most teams account for.

Breakdown below 👇
Article in first comment

[Battery Brief @batterybriefs]

Electrolyte wetting is one of the most underestimated bottlenecks in lithium-ion manufacturing : capillary forces, trapped air, and tortuous pore networks all working against you before formation can even begin.

Full breakdown 👇

[Battery Brief @batterybriefs]

A material clears every coin cell test. Then it goes into a pouch cell and the numbers don’t hold.

That’s not random scatter. It’s systematic. 🧵

[Battery Brief @batterybriefs]

#BatteryPhD position

[RJ @researchersjob]

Fully-Funded PhD in Materials Chemistry: Sustainable Battery Tech at Stockholm University, Sweden

Summary The Department of Chemistry at Stockholm University is inviting applications for a fully-funded PhD position in Materials Chemistry. This role fall
https://t.co/vq4iMcHJcs

[Battery Brief @batterybriefs]

Networking at battery/cleantech conferences is its own skill , nobody teaches it in a PhD program. Good watch for anyone early in the field

[Jill Pestana @jillpestana]

No one teaches you how to "do" conferences. Most of us learn through trial and error.

Lauren Allanson and I are hosting a free webinar to share practical networking strategies for early-career battery & cleantech professionals.

🔗 https://t.co/Swt5L75jlk

[International Energy Agency @IEA]

Falling costs are driving rapid growth in battery markets – with average prices dropping 8% in 2025.

But regional price disparities are widening: battery packs in China were 30% cheaper than in the US & 35% cheaper than in Europe last year.

Read more 👉 https://t.co/fRDiu5lrpx

[Battery Brief @batterybriefs]

@Shebbie4nyc Safety first is the way forward

[Battery Brief @batterybriefs]

@IEA On the way to electrification ⚡️🔋

[Battery Brief @batterybriefs]

The most dangerous coin-cell result isn’t a bad result. It’s a great result that only exists because of the coin cell.

Before you trust one, check four things: E/C ratio, N/P ratio, stack pressure, replicate cells.
Full article here : https://t.co/KlQ3fQEL9v

[Battery Brief @batterybriefs]

A material clears every coin cell test. Then it goes into a pouch cell and the numbers don’t hold.

That’s not random scatter. It’s systematic. 🧵

[Battery Brief @batterybriefs]

Excess lithium counter electrode. Non-uniform wave spring pressure. A 2025 MIT study found crimping alone shifts internal pressure 100–170 kPa, enough to flip Coulombic efficiency rankings between candidate electrolytes.

Nearly every default pushes the same direction: optimism.

[Battery Brief @batterybriefs]

Full pieces here! https://t.co/810RL2RDd8

[Battery Brief @batterybriefs]

A contact angle number doesn’t tell you if your cell will wet.

Droplet on a single coating vs. electrolyte fighting through 100+ compressed layers, seconds vs. hours, not the same physics.

Link in the first comment

[Battery Brief @batterybriefs]

⚡ New on Battery Brief: Cell Energy Density Calculator

Estimate gravimetric and volumetric energy density from your cell design in seconds. A useful starting point for comparing design trade-offs and validating assumptions.

Try it here: https://t.co/yMlPKdtRJq

[Battery Brief @batterybriefs]

Link here!

https://t.co/QWIbpduyZN

[Battery Brief @batterybriefs]

We just published a scientific guide on Mass Transport in Batteries.
Link in the comment 👇👇

[Battery Brief @batterybriefs]

Here is the free tool for N/P calculations

https://t.co/pVSlUCHsL8

[Battery Brief @batterybriefs]

The N/P ratio you design on paper isn’t the one your cell ships with.

It’s not a fixed number. It’s a distribution, and manufacturing tolerance alone can shift it more than most teams account for.

Breakdown below 👇
Article in first comment

[Battery Brief @batterybriefs]

Here is the full article which covers what is not covered in the infographic!

https://t.co/FUJTRopJnw

[Battery Brief @batterybriefs]

We promise we do serious battery content too 😅 https://t.co/ILIEfWNWoZ

[Battery Brief @batterybriefs]

Battery engineer brain rot: walked into a parking garage, immediately saw a Nyquist plot on the wall 😂

Not real EIS data. My brain just refuses to turn this off.

Anyone else see battery science everywhere, or just me?