U.S. Nanocorp, Inc.

Craig Fennie, Jr

Pritpal Singh

David E Reisner

A method and system for determining the state-of-health of a nickel-metal hydride battery connected to a load comprises: detecting at least one of a real and imaginary part of an impedance of the battery at each of a first set of selected frequencies, the first set of selected frequencies including at least one frequency, and determining the state-of-health of the battery from a fuzzy system trained in a relationship between each impedance and the state-of-health, wherein the state-of-health is a function of the battery's ability to deliver power required by the load and the battery's capacity to meet load requirements.

Method and system for determining state-of-health of a nickel-metal hydride battery using an intelligent system

A method of and system for determining the state-of-health of a proton exchange membrane fuel cell stack connected to a load comprises detecting the real part of the impedance Z of the fuel cell stack at a selected frequency; detecting the voltage V of the fuel cell stack at open circuit; detecting the voltage V of the fuel cell stack when the maximum load current is being drawn from said fuel cell stack; and determining the state of health of said fuel cell stack from a fuzzy system trained in a relationship between said real part of the impedance of the fuel cell stack at the selected frequency, the voltage of the fuel cell stack at open circuit, and the voltage of the fuel cell stack when the maximum load current is being drawn from said fuel cell stack.

Method and system to determine state-of-health of a fuel cell using an intelligent system

A method of and system for determining the state-of-health of a lead acid battery of the type commonly used in portable external defibrillators comprises detecting an impedance characteristic of the battery at at least one selected frequency, counting the number of complete charge/discharge cycles that the battery undergoes, and determining the state of health of the battery from a fuzzy system trained in a relationship between the impedance characteristic and the cycle number of the lead acid battery and the state-of-health, wherein the state-of-health is a function of and varies with the battery's ability to deliver power required by the load and the battery's capacity to meet load requirements.

Method and system for determining state-of-health of a lead-acid defibrillator battery using an intelligent system

A method for determining state of health (SOH) of an electrochemical device using fuzzy logic (i.e., an intelligent system) is presented. State of health of an electrochemical device is determined by an internal characteristic parameter (or external operating and environmental conditions) of the electrochemical device and a characteristic parameter of a load with an intelligent system. The electrochemical device comprises such devices as primary (&ldquo;throwaway&rdquo;) batteries, rechargeable batteries, fuel cells, hybrid batteries containing a fuel cell electrode or electrochemical supercapacitors. The intelligent system is trained in the relationship between the characteristic parameters of the electrochemical device, the characteristic parameters of the load and the SOH of the electrochemical device.

Method for determining state-of-health using an intelligent system

A method for determining state of charge (SOC) of an electrochemical device using fuzzy logic (i.e., an intelligent system) is presented. State of charge of an electrochemical device is determined by an internal characteristic or parameter (or external operating and environmental conditions) with an intelligent system. The electrochemical device comprises such devices as primary ('throwaway') batteries, rechargeable batteries, fuel cells, a hybrid battery containing a fuel cell electrode and electrochemical supercapacitors. The intelligent system is trained in the relationship between the characteristic of the electrochemical device and the SOC of the electrochemical device.

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New Brunswick, NJ, United States of America

Craig Fennie, Jr