Product category:
Batteries and Chargers
News Release from: Exide Technologies
Edited by the Electronicstalk Editorial
Team on 14 September 2000
Pulses Plus lithium battery on show at
ECIF
CMP Batteries Standby Division will be showing the new Pulses Plus lithium battery at ECIF this year, a technology which offers an outstanding combination of operational advantages.
Apart from the many batteries in their range, CMP Batteries Standby Division will be showing their new Pulses Plus lithium battery at ECIF this year The technical requirements for lithium batteries used as the main power source in applications with long operating lives have changed drastically
This article was originally published on Electronicstalk on 2 Jan 2001 at 8.00am (UK)
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The electrical current profile typically consists of a low continuous current of some micro Amperes coupled with high pulses in the range of hundreds of milliamps and up to several Amperes for several milliseconds or even seconds.
The lithium thionyl chloride technology in bobbin-type construction is the most suitable solution for low-current applications, due to its high energy density, very low self-discharge rate and proven shelf and operating life of more than 10 years.
However, for reasons of construction, the currents that can be drawn from the battery are limited resulting in a reduced capability to deliver the full capacity under high current loads.
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Contracts will support the military's current operational requirements for portable radios used in the field.
Spirally wound lithium cells, on the other hand, are able to deliver higher currents.
However, due to their construction they are less safe.
They have significantly less capacity, they have a much higher self-discharge rate and thus are not suitable for long-term applications.
The new Pulses Plus battery technology closes this gap.
It combines the power capability of spirally wound lithium cells with the high energy density, the low self-discharge rate and the high safety level of bobbin-type lithium thionyl chloride cells.
The Pulses Plus technology consists of a combination of a bobbin type lithium thionyl chloride cell with a novel hermetically sealed rechargeable element, the Hybrid Layer Capacitor (HLC).
This new battery technology can be used to deliver efficiently current pulses up to several amperes with a minimum voltage of more than 3 Volts.
Moreover, this basic battery can be connected in series and in parallel to battery packs for higher voltages, higher current pulses and higher capacities.
The Pulses Plus technology offers an outstanding combination of operational advantages: High energy density High and stable operating voltage (3.6 V) High pulse current capability (up to several amperes) No passivation effect Wide operating temperature range (-40C to + 85C) Hermetical sealing (laser welding and glass-to-metal seal) Outstanding storage capability (up to >10 years) Ultimate safety (according to UL) Very low self discharge characteristics (less than 1.5 % per year) Some of the applications for which the Pulses Plus technology is the most suitable technical solution are: Automotive electronics Location and tracking systems Emergency equipment Medical equipment Oceanographic devices GPS/GSM related systems RFID/active transponders AMR (automatic meter reading) devices The actually available capacity and energy density of the Pulses Plus batteries are very high in comparison to spirally wound batteries.
The battery can be smaller and lighter and has a longer operating life.
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