Originally Published EMDM October 2005
Technology News
High-Voltage Lithium Battery Powers Up Portable Devices |
Surgical power tools and external defibrillators are among devices that may benefit from a long-life lithium battery. |
A high-voltage, high-rate lithium battery packs 2 Wh of energy at 4 V into an AA-sized cell. The power capacity and small size make the TLM-1550HP suitable for use in devices that require high power, long life, and extended storage. Automatic external defibrillators, cauteries, resuscitation equipment, bone healers, and handheld surgical power tools are among the target applications, according to Tadiran Batteries (Port Washington, NY, USA).
The battery can handle pulses up to 15 A, with a 5-A maximum continuous load. It offers long life in extreme environmental conditions, including a self-discharge rate of less than 3% per year at room temperature, and a temperature range of –40° to 85°C. The company also offers models that can withstand sterilization temperatures up to 125°C.
Solvents used in the battery are nontoxic and nonpressurized, and its anode material is less reactive than that found in other lithium cells, according to the company. Its safe design allows the battery to be shipped as a nonhazardous product. The unit also features a glass-to-metal hermetic seal, instead of a crimped elastomer gasket.
The battery has undergone a variety of safety tests, including nail penetration, crust formation, temperature, short circuit, and charge tests.
Copyright ©2005 European Medical Device Manufacturer
