SEARCH
Tynax ~ Patent Library

Patent for Sale:

Technology for High Current (700A), Rapid Charging Battery Module    

A patent pending thermal management and control technology for developing rapid charge battery modules for electric vehicles and grid storage.

Overview

The Company has created a thermal management and control technology especially suited for rapidly charging electric vehicle (EV) battery modules using high current. The Company recently completed development of its battery module reference design, based on commercially available Lithium Ion battery cells, that delivers a 300 amp hour charge into a high capacity battery module in 20 minutes, achieving over a 90% state of charge, thus affording a 300 mile driving range. Using thermal management techniques, this battery maintains cell temperatures within recommended limits during the bulk charging phase and also maintains thermal uniformity across all cells in the module. Further , the battery can be repeatedly rapid charged and discharged without exceeding thermal limits, thus enabling a driving range of over 900 miles in a single day.

Primary Application of the Technology

Battery modules for electric vehicles
Battery modules for electric grid storage

The Problem Solved by the Technology

Ability to charge a Lithium Ion battery at high current during the bulk charge phase--at input currents up to 700 amps while maintaining cell temperatures within recommended limits.

How the Technology Solves the Problem

This is a packaging and control technology. It concerns the packaging of battery modules and packs and includes charge control algorithms to be implemented by a battery management system or controller.

Competitive Advantage

Improves on currently available batteries in several ways:
1 - Enables fast charging, 20 minute or less, of high capacity batteries that afford a 300 mile driving range. The current, level 3, rapid-charge technologies under discussion typically charge small/medium batteries in 30+ minutes, affording a 100-120 mile driving range.

2 - Provides superior thermal management for existing Lithium Ion cells. A battery manufacturer can use this technology to repackage their cells into modules that provide better thermal management, thus improving on safety and increasing the lifetime of the module.

3 - Battery modules that use this technology can be repeatedly rapid charged and discharged without exceeding thermal limits, thus enabling a driving range of over 900 miles in a single day; in contrast, existing technologies require a cooling-down or recycle time of several hours, effectively only allowing one charge per day.

The seller would like to be granted a license back.

Frequently Asked Questions

This is a technology for creating battery modules using existing cells. It is configurable; i.e. it will accommodate different numbers of cells, from different manufacturers.

There are two configurations: Level four battery module which charges in 20 minutes and a Level five battery module which charges in 6 minutes.

Additional Information

The seller has comprehensive test data from a third party laboratory.

There are two prototypes: a Level four battery module (charges in 20
minutes) and a Level five battery module (charges in 6 minutes).

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 320: Electricity: Battery Or Capacitor Charging Or Discharging

Method or apparatus for controlled or regulated charging, discharging, or combined charging and discharging of one or more voltaic cells, batteries, or capacitors. Charging or electrically rejuvenating (e.g., depolarizing, etc.) a voltaic cell, battery, or electrical capacitor, wherein said charging or rejuvenating is accomplished by controlled addition of electrical energy into the cell, battery, or capacitor. Discharging - a voltaic cell, battery, or electrical capacitor, wherein discharging is accomplished by controlled release of electrical. A cell, battery, or capacitor structurally combined with a generator or electrical converter, whether or not electrical interconnection therebetween is recited.

Subclass 112: For battery pack
Subclass 150: With thermal condition detection