The Tech

Leclanché’s new marine battery system earns international certification

Swiss battery-maker Leclanché’s new Marine Rack System (MRS), a modular Li-ion battery system, has won approval by the international certification body DNV-GL. Leclanché will use the MRS on the E-ferry in Denmark, the world’s largest electric ferry, which is equipped with a 4.3 MWh Leclanché lithium-ion battery, and is scheduled for launch later this year…. Read more »

AKASOL opens two new production facilities for battery systems

German battery builder AKASOL has built two new production sites: a new facility with over 3,000 square meters of production halls and office space in Langen, as well as an additional 700 square meters of production space at the company’s headquarters in Darmstadt. The automated production line in Langen will be set up by the… Read more »

Magnet Applications’ new B12 neodymium compression-bonded magnets

Magnet Applications has announced a major upgrade to its neodymium compression-bonded magnet product offerings. The new B12 magnet has a typical maximum energy product (BHmax) of approximately 12 MGOe, compared to the previous generation’s 10 MGOe. The BHmax of a bonded magnet is determined by the density and the volume fraction of the magnetic material… Read more »

Mersen beats next generation DOE power density targets through Stack Reference designs

150 kVA – 16kW/L SiC power stack for heavy-duty EV Mersen partnered with AgileSwitch and FTCAP to develop two high performance 3-phase inverter power stack reference designs. The SiC MOSFET version uses Wolfspeed SiC modules to deliver 150 kVA at a power density of 16 kVA/l, exceeding the DOE’s 2020 roadmap for electric vehicle applications…. Read more »

Monolithically integrated GaN half bridge enables smaller, more powerful voltage converters

Germany’s Fraunhofer Institute for Applied Solid State Physics has demonstrated what it calls the world’s first monolithically integrated GaN half bridge for the 600 volt class. Half bridge circuits are the centerpiece of many voltage converters. Monolithic integration combines several components on a single GaN chip, enabling small, powerful systems to be created. Monolithically integrated… Read more »

EV tech explained: Why do EVs restrict the amount of battery capacity that can be used for driving?

All EVs that use lithium-ion batteries are designed so that their full capacity can’t be used in driving – a few kWh are always left over as a buffer. Sometimes you’ll find this figure in spec sheets, which might (for example) quote capacity as “60 kWh (55 usable)” or some such. What is the reason… Read more »

Adding quartz powder to Li-S battery electrolyte slows capacity loss

Researchers at the Paul Scherrer Institute (PSI) in Switzerland and the Université Grenoble Alpes in France have developed a simple method that they say can improve the performance of lithium-sulfur batteries by 25-30%. In “Direct observation of lithium polysulfides in lithium-sulfur batteries using operando X-ray diffraction,” published in Nature Energy, Joanna Conder and colleagues reported… Read more »

Umicore invests €300 million to boost capacity in cathode materials

Materials technology specialist Umicore plans to invest €300 million ($328 million) between 2017 and 2019 to further increase its production of nickel-manganese-cobalt (NMC) cathode materials. NMC is one of the most popular cathode materials for EV batteries, and global demand is increasing fast. The increased capacity will enable Umicore to respond to a surge in… Read more »

TM4 and Cummins partner to develop plug-in hybrid powertrain for e-buses

Hydro-Québec subsidiary TM4 has joined with motor-maker Cummins to develop a plug-in hybrid powertrain for Class 7/8 transit buses. TM4 equipped 5,000 buses in China with its electric powertrain last year. The new system consists of a genset (Cummins’ Euro 2019 B4.5 engine coupled with TM4’s LSG130 electric generator), a TM4 SUMO electric motor, a… Read more »