Battelle Memorial Institute

Vilayanur Venkataraman Viswanathan

Alasdair James Crawford

Robert S Wegeng

Zimin Nie

Ward E TeGrotenhuis

Dean W Matson

Victoria S Stenkamp

M Kevin Drost

Michael C W Kintner-Meyer

Scot D Rassat

Trevor D Hardy

Di Wu

Patrick Joseph Balducci

Jun Liu

Gordon Lee Graff

Bin Li

Vincent L Sprenkle

Wu Xu

Wei Wang

Zhenguo Yang

Donghai Wang

Jin Yong Kim

Daiwon Choi

David Matthew Reed

Edwin C Thomsen

Kurtis P Recknagle

Brian J Koeppel

Jason Zhang

Systems, methods, and computer media for battery system management and non-linear estimation of battery state of charge are provided herein. Battery data is received for a time period over which a battery system has operated. The battery data represents the actual performance of the battery system over the time period. Sub-periods of charging or discharging can be identified in the time period. For the sub-periods of time, a curve can be fit to the battery data. Using the curves for the battery data for the sub-periods of time, an expected performance of the battery system, over a range of states-of-charge, can be determined. Operating instructions for the battery system can be provided based on the expected performance.

Battery system management through non-linear estimation of battery state of charge

A redox flow battery stack cell frame comprising a support frame and a monolithic bipolar plate integrated within the support frame is disclosed. The bipolar plate comprises a plurality of interdigitated flow channels on at least one surface. The support frame comprises an inlet manifold formed into a facing surface of the first side of the frame, the inlet manifold comprising fluid inlet distribution channels in a serpentine arrangement, each fluid inlet distribution channel aligned with a single inlet flow channel of the bipolar plate; and an outlet manifold formed into the facing surface of the opposing side of the frame, the outlet manifold comprising fluid outlet distribution channels in a serpentine arrangement, each fluid outlet distribution channel aligned with a single outlet flow channel of the bipolar plate. Redox flow battery stack cells and stacks comprising the stack cell frame are also disclosed.

High performance redox flow battery stack

Lithium ion batteries having an anode comprising at least one graphene layer in electrical communication with titania to form a nanocomposite material, a cathode comprising a lithium olivine structure, and an electrolyte. The graphene layer has a carbon to oxygen ratio of between 15 to 1 and 500 to 1 and a surface area of between 400 and 2630 m/g. The nanocomposite material has a specific capacity at least twice that of a titania material without graphene material at a charge/discharge rate greater than about 10 C. The olivine structure of the cathode of the lithium ion battery of the present invention is LiMPOwhere M is selected from the group consisting of Fe, Mn, Co, Ni and combinations thereof.

Lithium ion batteries with titania/graphene anodes

The present invention provides compact adsorption systems that are capable of rapid temperature swings and rapid cycling. Novel methods of thermal swing adsorption and thermally-enhanced pressure swing adsorption are also described. In some aspects of the invention, a gas is passed through the adsorbent thus allowing heat exchangers to be very close to all portions of the adsorbent and utilize less space. In another aspect, the adsorption media is selectively heated, thus reducing energy costs. Methods and systems for gas adsorption/desorption having improved energy efficiency with capability of short cycle times are also described. Advantages of the invention include the ability to use (typically) 30-100 times less adsorbent compared to conventional systems.

Apparatus for thermal swing adsorption and thermally-enhanced pressure swing adsorption

Method for thermal swing adsorption and thermally-enhanced pressure swing adsorption

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Richland, WA, United States of America

Vilayanur Venkataraman Viswanathan