GM Global Technology Operations

Boosting Solid-State Batteries with a Capacitor Interlayer

This patent describes a solid-state battery design that includes a special capacitor-like layer between the main battery parts to improve performance and stability.

Improving Lithium Battery Life with a Built-in Lithium Source

This patent describes a method for building rechargeable lithium-based batteries with a special extra lithium source electrode inside that helps the main battery parts work better and last longer by giving them an initial charge of lithium ions.

How a Hybrid Layer Stops Metal Growths in Lithium Batteries

This patent describes a special multi-layered electrolyte system for lithium metal batteries that uses a stiff, hybrid material to block dangerous metal growths, aiming for safer, higher-energy batteries.

Making Solid-State Battery Electrodes That Don't Swell and Crack

This patent describes a special design for solid-state battery electrodes that uses tiny internal holes and spaces between particles to prevent them from expanding and cracking during charging and discharging.

Making Safer Battery Separators with Ceramic Coatings

This patent describes how to make a special ceramic coating for battery separators using specific lithium-containing materials and a precise drying process to improve the safety and performance of lithium-ion batteries.

How to Build Solid-State Batteries with Tiny Holes for Better Electrolyte

This patent describes a method for manufacturing solid-state batteries by punching small holes through battery electrodes and then filling these holes with a liquid that hardens into a solid electrolyte, aiming for more efficient power delivery.

How Self-Driving Cars Find Clear Paths Between Objects

This patent describes a method for vehicles, especially self-driving ones, to use lidar data and a 3D grid to precisely identify open spaces between obstacles, helping them navigate safely.

How to Fast-Charge Lithium Batteries Without Damaging Them

This patent describes a three-phase method for quickly charging lithium-ion batteries while carefully controlling voltages to prevent harmful lithium metal buildup and electrolyte damage.