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Budingen, Germany

Exide Technologies Inc is an American manufacturer of lead-acid batteries, including automotive batteries and industrial batteries. Its four global business groups provide stored electrical energy products and services.Exide’s global headquarters are located in Milton, Georgia. It has both manufacturing and recycling plants. The former are located throughout the U.S., Pacific Rim, Europe and Australia. Recycling plants are located in Baton Rouge, Louisiana; Canon Hollow, Missouri; Muncie, Indiana; and Reading, Pennsylvania. Two former recycling plants of theirs - in Frisco, Texas and Vernon, California plants have been closed in 2012 and 2013 due to regulatory inspections that found toxic emissions and/or leakages of lead and cadmium.Transportation markets include original-equipment and aftermarket automotive, heavy-duty truck, agricultural, and marine applications, and new technologies for hybrid vehicles. Industrial markets include network power applications such as telecommunications systems, electric utilities, rail transport, photovoltaic , uninterruptible power supply , and motive-power applications including forklift trucks, mining, and other commercial vehicles. Wikipedia.


Patent
Exide Technologies | Date: 2013-09-26

A lead-acid battery grid made from a lead-based alloy containing tin, calcium, bismuth and copper and characterized by enhanced mechanical properties, corrosion resistance, less battery gassing, lower sulfation and water loss, and no post-casting treatment requirements for age hardening. In one embodiment, the battery grids are formed from a lead-based alloy including about 2.0% tin, about 0.0125% copper, about 0.065% calcium, and about 0.032% bismuth. Preferably, the battery grid is free of silver beyond trace levels in the alloy.


An Advanced Graphite, with a lower degree of ordered carbon domains and a surface area greater than ten times that of typical battery grade graphites, is used in negative active material (NAM) of valve-regulated lead-acid (VRLA) type Spiral wound 6V/25 Ah lead-acid batteries. A significant and unexpected cycle life was achieved for the Advanced Graphite mix, where the battery was able to cycle beyond 145,000 cycles above the failure voltage of 9V, in a non-stop, power-assist, cycle-life test. Batteries with Advanced Graphite also showed increased charge acceptance power and discharge power compared to control groups.


Determining a state of charge (SOC) of a rechargeable battery includes using a first process to determine a first value for the SOC of the battery and using a second process to determine a second value for the SOC of the battery and deriving the SOC as a weighted average of the first value for the SOC and the second value for the SOC. During a charging cycle of the battery an input charge of the battery is determined from an input current flowing into the battery and a charging time. During a discharging cycle an output charge of the battery is determined from an output current flowing out of the battery, a discharging time and an actual capacity of the battery is the sum of the input charge over charging cycles minus the sum of the output charge over discharging cycles.


Patent
Exide Technologies | Date: 2012-05-09

A battery system including a battery pack having a plurality of battery cells and a charger control circuit configured to receive unregulated power from a source and to provide regulated power to the battery pack. The battery system also includes a battery management system configured to individually monitor and control the plurality of battery cells and the charger control circuit.


Patent
Exide Technologies | Date: 2012-10-30

A method of rating a battery includes providing a plurality of numerical values by removing units from standardized ratings or tests for the battery; assigning a pre-calculated unit scaling factor to each numerical value of the plurality of numerical values; and calculating a total rating by multiplying each pre-calculated unit scaling factor by each corresponding numerical value of the plurality of numerical values to obtain a normalized value for each numerical value of the plurality of numerical values, and adding each normalized value.

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