US 7,612,472 B2 · Method and apparatus for monitoring energy storage devices

Abstract

An improved battery, monitoring circuit and method for communicating with the battery is provided. Such batteries and communication methods are particularly useful in UPS systems that use such batteries to provide back-up power to electrical loads. In one aspect, performance, manufacturing, trend and/or other data are stored in non-volatile memory of the battery and are communicated to an external system such as a UPS. In another aspect, a method for communicating via single-wire interface is provided. In one aspect, a same interface is used to communicate with both conventional batteries and improved batteries having increased monitoring capabilities.

Claims31

Dependent claims

A battery having an apparatus for monitoring the battery, the battery comprising:

one or more cells that provide power to at least one output;
and
a monitor that is adapted to monitor and store performance information relating to the operation of the one or more cells, and which is adapted to communicate with an external system, and that is adapted to receive a monitor signal from the external system, wherein the monitor is coupled to the one or more cells and is adapted to receive power for the monitor from the external system and wherein the monitor communicates with the external system by actively suspending current of received power provided to the monitor by the external system.

Dependencies are inferred from the claim text.

Facts

Application

10/764,343Filed 23 Jan 2004

Published

US 2005/0162129 A128 Jul 2005

Granted

3 Nov 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

H01M 10/48
Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells: accumulators combined with arrangements for…
H02J 7/50
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: acting upon multiple batteries simultaneously or…
H02J 7/80
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries: including monitoring or indicating arrangements
H02J 7/84
Including monitoring or indicating arrangements: control of state of health [SOH]

Method and apparatus for monitoring energy storage devices

Life of this patent

Method and apparatus for monitoring energy storage devices

Life of this patent

Abstract

Claims31