# High energy density batteries

Simulating spectroscopy to help build better batteries.

The global transition to electric vehicles and advanced electronics demands a new generation of more powerful batteries.

## Problem

To improve battery technology performance by **up to 50%**, scientists are exploring a new class of materials **called Li-excess. X-ray absorption spectroscopy** (XAS) is a crucial tool used to troubleshoot degradation issues in current prototypes, but correctly interpreting the raw XAS data requires expensive simulations, which would take **years to run on classical computers.**

## Solution

Our breakthrough solution is a **quantum algorithm that can simulate the X-ray spectrum** of a material with unparalleled speed. We deliver a simulation tool that only requires around **a hundred logical qubits** and can produce a spectrum in **a matter of weeks, not years**.

We expect Xanadu's new quantum algorithm to help scientists pinpoint the root cause of Li-excess battery degradation, enabling them to engineer the stable, high-performance batteries of the future.

## Learn More

- ### [Quantum algorithm for simulating resonant inelastic X-ray scattering in battery materials](https://arxiv.org/abs/2602.20270)  
  [February 23, 2026](https://arxiv.org/abs/2602.20270)
- ### [X-ray Absorption Spectroscopy Simulation in the Time-Domain](https://pennylane.ai/demos/tutorial_xas)  
  [August 29, 2025](https://pennylane.ai/demos/tutorial_xas)
- ### [Fast simulations of X-ray absorption spectroscopy for battery materials on a quantum computer](https://arxiv.org/pdf/2506.15784)  
  [August 20, 2025](https://arxiv.org/pdf/2506.15784)
- ### [Simulating X-ray absorption spectroscopy of battery materials on a quantum computer](https://arxiv.org/abs/2405.11015)  
  [May 17, 2024](https://arxiv.org/abs/2405.11015)

## Related Applications

### [High-contrast quantum magnetometers](/content/applications/high-contrast-quantum-magnetometers/index.html)

Designing the next generation of quantum sensors.

### [Simulating computational fluid dynamics](/content/applications/simulating-computational-fluid-dynamics/index.html)

Developing efficient algorithms to optimize fluid dynamics simulation.

## Where quantum meets industry

Xanadu is focused on building useful quantum computers to solve the world's most intractable computational problems.

## Advance your applications with quantum

Partner with our leading researchers to explore how our technology can address your most demanding applications.