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High Energy Density Li-ion Battery with Enhanced Safety, Durability, and…

Award Information

Department of Energy
Award ID:
Program Year/Program:
2011 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
10 e
Solicitation Number:
Small Business Information
InvenTek Corporation
320 Willow Street New Lenox, IL -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2011
Title: High Energy Density Li-ion Battery with Enhanced Safety, Durability, and Sustainability
Agency: DOE
Contract: DE-FG02-11ER90175
Award Amount: $150,000.00


Conventional Li-ion cells/batteries for hybrid and electric vehicles have difficulty meeting USABC goals for performance/cost that are required for commercially-viable EV. The prevailing large format pouch/prismatic has the advantage of low packaging weight/volume, 10% at cell level, but is doubled (100% increase) in transitioning to the battery. Aside from the reduced energy density (accommodation for thermal management), pouch/prismatic has drawbacks in durability (internal gas buildup degrades performance) and cost of battery assembly (extensive weld assembly with a fragile cell packaging). Li-ion batteries must be more cost effective for broad adoption, generally 50% lower cost prospects, to realize promise of significantly reduced oil dependency. InvenTeks Rolled-Ribbon Technology is evolved for high energy density to show competitive advantages in comparison to the prevailing pouch/prismatic cell packaging. A Rolled-Ribbon cell, sized for EV, also has low packaging weight/volume (10%) to rival the pouch/prismatic cell packaging. Further, a stacked-cell battery with Rolled-Ribbon cells (adding only 10% weight/volume over cells) doesnt require a welded assembly. This configuration provides outstanding battery thermal management. With comparable Li-ion chemistry, battery-level energy density for Rolled-Ribbon is doubled. To further tackle the EV battery cost issue, Rolled-Ribbon cells rejuvenated via OnTo Technology processing may cut life cost in half.Commercial Applications and Other Benefits: Rolled-Ribbon battery sees primary application as in hybrid and electric vehicles. Other applications involve smart-grid as regulatory power storage, solar/wind energy storage, backup power for data centers, etc. Affordable hybrid and electric vehicles can reduce the USAs dependence on foreign oil, but also reduce air pollution and greenhouse gas emissions. The US needs to compete in the world market for green energy and industries. A high performance low-cost battery will support these critical objectives

Principal Investigator:

Thomas Kaun

Business Contact:

Thomas Kaun
Small Business Information at Submission:

Inventek Corporation
320 Willow Street New Lenox, IL -

EIN/Tax ID: 363753891
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No