Battery Power - March/April 2012 - (Page 24)

New Products • Components absorb the battery gap, and reduce the risk of intermittent power outages (even if the device is dropped). This two piece battery connector is well suited for use in devices where uninterrupted power is critical, including but not limited to cellphones, mobile devices, GPS units, tablet PCs and any type of handheld portable unit that is operated in a harsh environment. The four blade type is capable of handling high rated currents of up to 2 A per blade. Yokowo’s compact two piece battery connector features a 30 mΩ maximum (initial) contact resistance, operating temperatures ranging from -40ºC to 85ºC, voltage of 12 V AC/DC and operational durability of 2,000 cycles. The plug side is 2.2 mm by 2.6 mm by 7 mm and the receptacle side is 3 mm by 2.5 mm by 8.8 mm. Each blade consists of four contacts with a 2.5 mm pitch. Batteries Get a Power Boost from Dreamweaver Separators Battery manufacturers in North America and Asia are testing new nanofiber-based battery separators by Dreamweaver International, Inc. Lithium ion batteries made with Dreamweaver separators can deliver four times the power and recharge four times faster than conventional batteries. Dreamweaver separators can also make batteries more safe by providing higher temperature stability and better electrolyte wettability. Lithium ion batteries are stressed at higher temperatures and when there is a dry spot inside a battery, problems that are alleviated by Dreamweaver’s separators. The technology is being applied in batteries for cell phones, laptops, electric bikes, hybrid and electric automobiles and other applications for high performance rechargeable batteries. The technology uses a combination of nanofibers and microfibers. The microfibers provide strength and loft, which is needed to give the best electrical flow through the battery. The nanofibers allow the separator to be made very thin and still keep the electrodes apart. Together, they give performance that cannot be achieved any other way, with a flexibility that allows the separator to be tailored to meet the needs of specific applications. Samples are being tested by more than two dozen companies in the US, Canada, Korea and China. Compact Linx Battery Holders New surface and through-hole mount battery holders from Linx provide solid electrical contact for CR1216, CR1225, CR2016, CR2025 and CR2032 lithium coin and button cells. The compact design of the holders is well suited for spaceconstrained applications such as computers, remote controls and other handheld electronics. The battery holders’ low price makes them a smart choice for high-volume projects. Their nickel-plated phosphor bronze construction provides good conductivity and strength. Two metal arms secure the battery to the contact patch. New Milling Technology for Laboratory and Small Batch Production Yokowo Adds a Compact Model to Line of Two-Piece Battery Connectors with Two-Way Insertion Capability Yokowo’s two piece battery connectors have expanded and now will include a compact version. Featuring two less blades than the original sixblade type, the new four blade model is designed to allow for flexibility for both horizontal and vertical blade insertion. The compact size has also resulted in a reduction in pitch (from 3 mm to 2.5 mm). To ensure a constant connection, the receptacle side features dual beam contact in both insertion directions. Two tabs are uniquely fitted on the receptacle to provide a secure grip around the blade upon insertion. Biaxial torsion and a floating function Netzsch-Condux has introduced a development in the field of ultra-fine grinding, the laboratory steam jet mill S-JET 25. Contrary to the conventional air jet mills, the S-JET system uses superheated steam as the grinding gas. This enables production of dry powders in the nanometer range (e.g. d50 < 0.2 µm). All S-JET mills have an integrated air classifier to provide direct control of the particle size distribution of the output material. Superheated steam at high pressure has much higher jet energy than air (approximately four times higher) enabling finer particles to be produced and presented to the internal classifier. Steam, due to its gas properties, as a medium for classification enables finer cut points and therefore a finer particle size distribution from the mill. Materials such as ceramic oxides can be produced with a median particle size (d50) of 130 to 140 nm. This was previously possible only with wet grinding. Production S-JET systems have been in operation for several years. However a laboratory system was needed for development work and production of small amounts of high value material. This led to the development of the S-JET 25. The compact and fully integrated S-JET 25 Laboratory System includes all necessary components such as feeder, jet mill, product collection, controls, fittings and steam generator all on one skid. The space required is 3 m² with a maximum required height of only 2,450 mm. Installation requires connection to electrical power and water so the plant is ready for operation in www.BatteryPowerOnline.com 24 Battery Power • March/April 2012 http://www.BatteryPowerOnline.com

Table of Contents for the Digital Edition of Battery Power - March/April 2012

Battery Power - March/April 2012
Nissan and ABB Link to Evaluate Second-Life Storage Applications for Nissan LEAF Battery Packs
Nichicon Develops 50 kW Quick Charger for Evs
Lithium-Ion Battery-Emulation Circuit Using a Microcontroller
High-Efficiency Switching-Mode Charger System Design Considerations with Dynamic Power Path Management
Making Lithium-Ion Abuse Tests Meaningful
Batteries
Charging & Testing
ICs and Semiconductors
Power Supplies
Components
Industry News
Marketplace
Calendar of Events
Research and Development

Battery Power - March/April 2012