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Lithium-ion batteries withstand 10.000 charging cycles May 22, 2013
Scientists from the Centre for Solar Energy and Hydrogen Research Baden Wuerttemberg (ZSW) have developed lithium-ion-batteries that could offer new perspectives for electromobility: After more than 10.000 charging cycles, the batteries still had more than 85 percent of its initial capacity.
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Shunt-based management system targets lithium-ion batteries
May 14, 2013
The "IB4" battery management system from Isabellenhütte is designed for four-cell lithium ion batteries with individual cell voltages of up to 5V, and was developed in cooperation with the company's Braunschweig-based development partner I+ME Actia.
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NXP unveils world's first low VCEsat double transistors in 2-mm x 2-mm leadless package
March 11, 2013
NXP Semiconductors N.V. has introduced what the company claims are the industry’s first double transistors with low saturation voltage in a 2-mm x 2-mm DFN (discrete flat no-leads) package. Read more Volkswagen starts battery production for e-car March 8, 2013
The industrialization of electric vehicles and components hereof gets going: This week, Volkswagen launched the serial production of battery stacks systems for its electric vehicle e-up scheduled to be available later this year.
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High efficiency bidirectional multicell battery balancer
March 5, 2013
With the LTC3300-1, chipmaker Linear Technology addresses the fledgling market of batteries for electric and hybrid electric vehicles. The LTC3300-1 is a fault-protected controller IC for transformer-based bidirectional active balancing of multicell battery stacks. The device can also be used in high-power UPS/grid energy storage systems and general purpose multicell battery stacks.
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Connectivity, electromobility determine future car architecture
The car as we know it is an obsolescent model. All automotive engineers know this, because their entire work gyrates about re-inventing it everyday. At the recent Euroforum conference on Automotive electronics in Munich, it once again became clear which factors drive the development, and attendees got an idea of how individual mobility in the future will look like.
Triple output synchronous DC/DC controller maintains regulation in automotive start/stop systems
Linear Technology Corporation introduces the LTC3859AL, a triple output (buck, buck, boost), low quiescent current synchronous DC/DC controller that maintains all output voltages in regulation during automotive cold crank conditions. Continental and SK Innovation launch traction battery JV
Automotive supplier Continental has inked an agreement with SK Innovation of Korea to es-tablish a joint venture dedicated to developing battery technology for vehicles. The two firms intend to concentrate their related expertise in this new company with the goal of mutually developing, producing and globally marketing traction batteries based on the lithium-ion technology.
Saft takes control of Nersac lithium-ion battery factory
Saft has acquired the Nersac Li-ion battery facility near Angouleme in France from Johnson Controls Inc.
Research factory will develop and evaluate cost-effective li-ion battery production technologies
Efficient, economic energy storage technologies are the core element of electromobility. For this reason, the demand for powerful and affordable battery systems which also are suitable for everyday use is rising. The Karlsruhe Institute of Technology (KIT) is about to establish a prototype and small series production for large lithium-ion batteries. The project aims at developing new production technologies that meet the high requirements for energy density, usability, and cost effectiveness.
SiP provides integrated solution for automotive battery sensing
The AS8515 system-in-package (SiP) introduced today by ams AG enables the implementation of a complete automotive battery measurement system when interfaced via SPI to any microcontroller. Combining signal processing, voltage regulation and LIN transceiver in a single package, it provides accurate and linear current, voltage and temperature measurement outputs
Li-ion battery monitor chipset ensures battery life in HEVs and EVs
Toshiba Electronics Europe (TEE) has announced the launch a Li-ion battery monitor chipset for automotive applications. Designed for Hybrid Electric Vehicles (HEVs) and Electric Vehicles (EVs), the chipset comprises the TB9141FG monitoring IC and the TMPM358FDTFG microcontroller. The product detects remaining battery level, equalizes battery levels (cell balancing) and can detect abnormal battery status.
Very accurate battery monitor for HEVs and EVs comes with isolated interface
Linear Technology announces the LTC6804 high voltage battery monitor for hybrid electric and electric vehicles, and other high voltage, stacked-battery systems. An LTC6804 can measure up to 12 series connected battery cells at voltages up to 4.2V with 16 bit resolution and better than 0.04% accuracy. This high precision is maintained over time, temperature and operating conditions by a sub-surface Zener voltage reference similar to references used in precision instrumentation. When stacked in series, the LTC6804 enables the measurement of every battery cell voltage in large high voltage systems. Six operating modes are available to optimize update rate, resolution and the low pass response of the built-in 3rd order noise filter. In the fastest mode, all cells can be measured within 290µsec.
Research cooperation aims at affordable energy storage for e-cars
The high costs for batteries are regarded as a major roadblock for a broad introduction of electric vehicles. One of the reasons for the high costs is the complex manufacturing process for lithium ion batteries. The Karlsruhe Institute of Technology (KIT) and Stuttgart-based M+W Group have signed an agreement for a research cooperation. The goal is to significantly reduce energy and material costs in the battery production.
High-voltage battery sensor extends Li-ion battery life
Lithium-ion batteries are difficult to handle; they need to be constantly monitored. Chipmaker Maxim Integrated Products has introduced the fourth generation of its high-voltage sensor for drivetrain batteries in e-cars. The MAX17823 features a full package of integrated safety diagnosis functions according to the safety standard ISO26262. The device contributes to extending the driving range of electric vehicles while at the same time optimizing the safety and reliability of batteries and fuel cells.
70V-tolerant, 12-cell battery sensor extends battery life, supports highest automotive safety rating
Maxim Integrated Products, Inc. has unveiled a fourth-generation high-voltage battery sensor for mission-critical automotive and industrial lithium-ion battery and fuel cell applications.
RUB researchers create early warning system for vehicle batteries
Research project establishes lithium-ion battery pilot production line
German research center ZSW (Zentrum für Sonnenenergie- und Wasserstoff-Forschung) will install a test production line for lithium-ion batteries for electric vehicles. The goal of the project is the development and test of prismatic Li-ion batteries with a capacity of 20 Ah and more. Such batteries will be used as drive batteries in electric cars. The pilot production line is scheduled to start its activities in 2014.
VDE puts battery test center into operation
Battery safety is a big issue for electric vehicles. In the past few months, several accidents with casualties highlighted the risk associated to today's traction batteries. Now the German electrotechnical industry association VDE opened a battery test facility designed as a service provider for the automotive industry as well as for research institutes and government agencies.
Cooling agent extends service life of traction batteries
An overdose of heat can damage the traction batteries of electric vehicles. Researchers have developed a cooling agent that dissipates heat three times better than water. Thus, powertrain designers can shrink the tank for the battery cooling, which helps them to reduce space requirements and weight.
Multi-cell, multi-chemistry battery gas gauge supports wide range lithium battery chemistries
Market researcher predicts "gold rush" for car traction batteries
Over the next decade, the market for car traction battery packs will explode from $4.8 billion to $54.2 billion, predicts a report from market research and consultant company IDTechEx. This huge emerging market has triggered efforts to create a $10 billion traction battery company and a "gold rush" to obtain the key materials.
BMW selects Preh to supply HEV battery management system
Automotive subsystem supplier Preh GmbH has scored a success in addressing future markets for electric and hybrid vehicles: The company got the assignment to integrate the ECUs for the lithium-ion battery management in BMW's new ActiveHybrid 5 sedan. Preh expertise is also used in the BMW ActiveE, which is exclusively electric-powered.
Video amplifiers integrate short-to-battery protection and fault detection for automotive video applications
Analog Devices, Inc. has introduced a series of high-speed video amplifiers that integrate short-to-battery protection and fault detection for analog video systems in automotive safety and infotainment applications.
Chip family protects Li-ion batteries in vehicles and power tools
Rohm Semiconductor introduces a line-up of ICs providing all functions needed for controlling, monitoring and protecting systems using multiple-cell series-connected Li-ion battery packs. These rechargeable battery packs are commonly used in hybrid electric vehicles or electric vehicles (HEV/EV), Power Tools and E-Bicycles, application areas which are expected to rapidly grow over the next few years.
Audi opens li-ion battery competence center
Carmaker Audi has launched an R&D center dedicated to high-voltage lithium-ion batteries. With the move the company highlights the significance of electric driving for its future strategy.
Voltage references deliver ultra-low noise, high accuracy and value for precision applications
Analog Devices, Inc. has introduced a series of voltage references offering the industry’s best combination of noise performance, initial output voltage accuracy, low temperature coefficient (TC), and excellent long-term stability at unmatched price points.
Motor controllers for electric vehicle powertrains
The motor controller is an electronics package operating between the battery and the motor that essentially acts as the 'brains' of a vehicle. Its main role is to convert power from the battery (DC) into an AC or DC motor and to provide intelligence as to how and when to deliver power to the motor.
BASF acquires materials expert company for Li-ion batteries
BASF has announced the acquisition of Novolyte Technologies, based in Cleveland, Ohio (USA). Novolyte is a manufacturer of electrolyte formulations for lithium-ion batteries, as well as specialty chemicals for several key market segments.
Market researcher: Li-ion battery price stays too high for mass adoption of electric vehicles
Early demand for electric vehicles and plug-in hybrid electric vehicles has fallen short of optimistic projections, as vehicles like the Chevy Volt have missed sales targets. The key to growing the market is reducing the cost of Li-ion batteries, according to a Lux Research report.
Boost converter for stop-start applications reduces fuel consumption by up to 15 percent
International Rectifier has introduced an automotive-qualified AUIR3240S battery power switch for the combustion-engine shut-off and restart function (Stop-Start system) that can help reduce fuel consumption in automotive vehicles by up to 15 percent.
Stop-start supercapacitor module enables longer battery life, smaller batteries
DC charging connector system for electric commercial vehicles
Phoenix Contact has released high-performance connectors to charge large DC battery units. The DC interchangeable battery concept for power applications was specifically developed for electric commercial vehicles. It is used in city and community transportation systems, for transport vehicles in the logistics environment, as well as for people movers.
BASF reinforces position in lithium-ion battery research
Chemical company BASF has announced to take over the electrolyte business for high-performance batteries from competitor Merck. The move strengthens BASF's position in future markets lithium-ion batteries for electric vehicles.
Electric sports vehicle weighs less than 1000 kg
At the Bochum Car Symposium, chemical company Evonik AG has introduced an electric sports vehicle with rather impressive performance data, with the weight of less than 1000 kilograms (including battery) being one of the most spectacular ones. A chemical company? Indeed: The company contributed the Lithium-ion battery, the tires and parts of the body. The vehicle is based on a Lotus Elise, the famous British sports car.
MEMS chip enables battery-free sensors
A MEMS chip can harvest energy from vibrations inside car tires allowing a tire pressure monitoring systems (TPMS) to run battery-free, according to Belgian research institute IMEC. The new MEMS energy harvester technology from IMEC, which can be used to power any low-current wireless sensor node, was reported Wednesday at the IEEE International Electron Devices Meeting in Washington.
BMW, Toyota join forces for green technology R&D
Researchers enhance battery electrode specs
A team of Northwestern University researchers has created an anode electrode for lithium-ion batteries that allows the batteries to hold a charge up to 10 times greater than using current technology.
Industry's smallest intelligent battery sensor IC offers ADC resolution and lowest sleep mode current
ZMD AG has unveiled a new Intelligent Battery Sensor IC for fuel saving start/stop systems and other solutions for measuring State-of-health (SOH), State-of-charge (SOC) or State-of-function (SOF) of a vehicle’s battery. The first member of a new Battery Power Management product line from ZMDI, the ZSSC1856 comes in a QFN32 5x5 package of only 0.85 mm height.
42-V, 750-mA, 2.2-MHz step-down dc/dc converter only requires 2.5-uA quiescent current
Linear Technology Corporation has unveiled a 750 mA, 42 V step-down switching regulator with integrated boost and catch diodes. Its Burst Mode operation keeps quiescent current under 2.5 µA in no load standby conditions. The LT3973's 4.2 V to 42 V input voltage range makes it ideal for automotive and industrial applications. Its internal 1.2 A switch can deliver up to 750 mA of continuous output current to voltages as low as 1.21 V.
Daimler demos innovative hydrogen-powered research vehicle
Amidst ongoing discussions over the shortfalls and challenges of battery electric vehicle concepts, at the Frankfurt Motor Show Daimler presented a research car driven by hydrogen fuel cells. The vehicle boasts a large number of innovative features including its electronics.
Bosch builds pilot line for the production of lithium-ion batteries
New architecture promises better battery
A change in architecture is promising to close the gap between semiconductor technology and battery technology, which has traditionally lagged behind semiconductors due to its dependence on unchangeable chemical reactions.
IC protects battery packs for e-bikes, power tools
E-bikes and power tools are target applications for Texas Instruments' integrated battery protection and cell-balancing solution for Li-Ion and lithium iron phosphate battery packs. The device simplifies battery pack designs for e-bikes, e-scooters, portable gardening tools, power tools and uninterruptible power supplies (UPS) and can also be used when replacing lead acid batteries.
Axeon receives funding to lead electric vehicle battery recycling research
Global electric car production forecast to top 16 million in 2021
dSpace simulation model virtualizes high-voltage batteries
Engineering tool vendor dSpace GmbH (Paderborn, Germany) has added a new battery model to its Automotive Simulation Models (ASM) simulation package. The model is designed to virtualize rechargeable lithium-ion, nickel-metal hydride (NiMH) and lead batteries used for the electrification of vehicle drivetrains.
BASF throws its hat into the electromobility ring
TI unveils industry's highest accuracy lithium-ion battery monitor for electric mobility
Axeon receives EU funding for research to reduce size, weight and cost of EV and HEV batteries
Battery R&D seeks to amp up electric vehicles
SB LiMotive subsidiary Cobasys gets battery development contract in USA
Smart battery sensor computes battery status
Freescale Semiconductor's MM912J637 battery sensor measures current, voltage and temperature of lead-acid batteries and deduces the status of the battery from these parameters. Amidst increasing numbers of hybrid electric vehicles and start-stop systems (“mild hybrid”), it becomes increasingly important for car designers to determine the battery status.
Li ion battery recycling needs development incentives, market researcher says
NCAP: Electric cars reach high safety ranking
High voltage battery stack monitor enhances HEV/EV battery management systems
Linear Technology has introduced a second generation high voltage battery monitor for hybrid/electric vehicle (HEVs), electric vehicles (EVs) and other high voltage, high performance battery systems. The LTC6803 is a complete battery measuring IC that includes a 12-bit ADC, a precision voltage reference, a high voltage input multiplexer and a serial interface.
Sensor shuts off HV battery during accident
Automotive supplier Continental has developed a sensor (satellite) for electric and plug-in hybrid vehicles which will immediately shut off the high-voltage battery in the event of a collision while the vehicle is in charge mode. Thus, emergency service personnel can recover vehicles without running the risk of suffering an electric shock.
BMW, PSA Peugeot Citroen launch JV for electric components
Top ten of EE Times Automotive in 2010
FIAMM rolls batteries for micro hybrid vehicles
Italian vendor FIAMM Group has introduced a line of automotive batteries specifically designed for use in hybrid drive vehicles. Their innovative materials and architecture are particularly dedicated to the needs of micro hybrid concepts.
2.1-MHz automotive step-down converters consume 25 microamps
Maxim Integrated Products has introduced automotive-grade, synchronous step-down converters that consume 25 microamps (no load) and deliver 1 A and 600 mA, respectively. The 2.1 MHz step-down converters are optimized for operation over the 3.5 V to 28 V range.
batteryuniversity.eu offers UN Transport Tests for lithium ion batteries including all certifications
Panasonic invests in e-car manufacturer Tesla
Intersil unveils HEV/EV Li-Ion battery management control solution
Intersil Corporation has introduced its HEV/EV system solution, featuring an automotive grade Li-Ion battery management system and safety monitor. Building upon Intersil's history of providing battery management devices for the portable electronics market, the automotive grade (AEC-Q100) ISL78600 multi-cell solution is specifically designed and tested to address the safety, reliability and performance requirements of the hybrid, plug-in hybrid (PHEV) and electric vehicle markets.
Japanese government raises next-gen vehicles estimates
Li-ion batteries: better, cheaper with alternative material
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More power for less money – this is the outcome of a battery research program conducted by Oberflächen- und Materialtechnologie GmbH (o.m.t.). As a welcome side effect, the usage of toxic materials could be reduced.
From Li-ion batteries to smart traffic infrastructure – engineers discuss the future of mobility
At Volvo, the body becomes the battery
No more bulky batteries for electric cars: Volvo is participating in a research project aiming at integrating the battery into the body panels. This does not only mean squeezing the energy storage into narrow body cavities. The project aims higher.
Daimler starts small serial production of electric A-class
Daimler has started production of a small series of electric cars based on it's A-class five-seater compact car. The move is intended to gather experience with the integration of electric drivetrains into this class of vehicles
30-V P-channel power MOSFETs offer design flexibility benefits
International Rectifier has introduced a new family of -30 V devices featuring IR's latest P-channel MOSFET silicon in an SO-8 package for battery charge and discharge switches, and system/load switches used in DC applications.
Research: Li-ion battery has surprisingly small ecological footprint
Green battery, navigation, diagnostic system win Automechanika awards
Isabellenhütte Heusler and austriamicrosystems cooperate on flexible battery sensor ICs
Isabellenhütte and austriamicrosystems have signed a cooperation agreement to develop battery sensor ICs, taking advantage of both companies' expertise on current and voltage measurement of 12V and 24V vehicle batteries and on high-performance analogue ICs respectively.
BMW concludes e-car pilot project, targets China
Synchronous monolithic 1-cell Li-Ion/polymer battery charger delivers up to 4-A charge current
Linear Technology Corporation has introduced a 4-A monolithic synchronous buck battery charger for 1-cell Li-Ion/Polymer batteries. The LT3651-4.2 accepts inputs up to 32 V with a 40 V absolute maximum rating for added system margin.
AgigA Tech offers highest-density battery-free non-volatile DDR3 for critical data back-up
AgigA Tech Inc., a subsidiary of Cypress Semiconductor Corp. has introduced what the company claims is the industry's highest-density DDR3 solution as part of its family of high-speed, battery-free non-volatile RAM systems.
New IC reduces battery-management system costs by 80 percent in hybrid and electric vehicles
Maxim Integrated Products has introduced a high-voltage, 12-cell, battery-monitoring IC for hybrid vehicles, electric vehicles, and any system that stacks long series strings of batteries.
Lithium-ion battery roadmap hints at technology differentiation
Not one but many different types of lithium-ion batteries will drive future electric vehicles. This shows the Li-ion battery roadmap developed by the Fraunhofer Institute for System and Innovation Research (Fraunhofer ISI).
Hybrid commercial vehicles market to grow, but...
Volkswagen bundles global e-mobility R&D efforts
In a move to coordinate its globally distributed e-mobility R&D activities, Volkswagen announced to bundle its advanced research efforts for electric vehicles. The company's US-based Electronics Research Lab focuses on battery technology.
Munich University e-car concept brings down TCO
In an interdisciplinary effort of 20 chairs, the Munich Technical University has presented a concept for an e-car featuring total cost of ownership (TCO) equal to a conventional vehicle. The MUTE e-car also will sport a number of technologies that show what car designers regard as future trends.
BMW e-car will feature lightweight construction
These days, BMW has introduced the concept for its first pure e-car, to be launched in 2013. Besides the electric drive, the vehicle will excel through its extensive use of carbon fibre reinforced plastic, an extremely light but stable material.
Compact power electronics systems for vehicles offer power density of 20 kVA/litre
Semikron has introduced a series of SKAI 2 modules that claim to offer the most compact power electronic systems for hybrid and electric vehicles for use in the agricultural industry, construction industry, materials handling and battery-powered vehicles of any kind.
German trio transfers Lithium-ion technology to hybrid-drive trucks
Automotive tier ones Continental AG, ZF Friedrichshafen and ads-tec GmbH have launched a joint project aiming at Lithium-ion batteries for hybrid electric drives in commercial vehicles. Unlike many other projects focusing on materials, the joint effort gets granular on production technology.
Fraunhofer to display battery management at Hannover fair
General Motors boosts battery research
Autoliv grabs Delphi PSS activities
Electric two-wheelers get rolling, market researcher says
Battery management data acquisition IC offers very high accuracy
Daimler, Nissan in cooperation talks
Integrated lithium-ion battery protection circuit and safety monitor is unveiled by Analog Devices
Analog Devices, Inc., has unveiled a Li-ion battery monitoring and protection system that integrates all necessary components, including voltage and current measurement, signal isolation and safety monitoring.
Battery management circuit features active cell balancing for high-cell-count Li-Ion batteries
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