Materials

Deep Insight

Supercapacitor applications

Supercapacitors and batteries make an ideal team, reports Peter Donaldson, who reports on how they are used in EVs Although batteries and supercapacitors both store electrical energy, they do so in very different

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Wax works well for conducting heat

Researchers in the US and China have developed an economic but efficient battery thermal management strategy using paraffin wax (writes Nick Flaherty). The 3D, interconnected, thermally conductive boron nitride network greatly improves thermal conductivity compared to random distribution. “We designed a 3D network of boron nitride, and systematically studied its effect on the thermal management […]

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SABIC cube cells pack more energy

Engineers at materials firm SABIC have patented a design for a battery pack using cuboidal cells (writes Nick Flaherty). The cells are inserted into a structural backbone made from a thermoplastic, and could increase battery pack energy density by 20% or more, with 10% more cells compared to a pack using cylindrical cells , along with […]

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AGRO explains importance of EMC-shielded cable glands

Like most small parts in complex vehicle systems, the glands that support, seal and protect the interfaces between HV cables and the components they link rarely receive the attention that the critical nature of the functions they fulfil perhaps ought to command (writes Peter Donaldson). AGRO’s EVolution EMC cable glands are a case in point, […]

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Design unveiled for 800V inverter from Texas Instruments

Texas Instruments has developed a reference design for an 800 V, 11 kW three-level, three-phase inverter using gallium nitride (writes Nick Flaherty). The inverter uses a 6.6 kW active neutral-point clamped (ANPC) inverter design with a 600 V LMG3422R030 GaN FET. This enables a switching frequency of 100 kHz to reduce the size of the […]

New Products

CATL launches cell-to-pack battery and claims highest integration level so far

CATL has announced Qilin, the third generation of its cell-to-pack technology dubbed CTP 3.0. The company says it gives a volume utilisation efficiency of 72% and an energy density of up to 255 Wh/kg, to deliver a range of more than 1000 km. In the Qilin, which is named after a legendary creature in Chinese […]

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Components keep their cool in 3D

A feasibility study has examined the use of over-moulding to create 3D electronic components with high thermal conductivity (writes Nick Flaherty). The project, at Sobaplast in Germany, uses the Keratherm MT 103 and MT 320 injection moulding materials from Kerafol on circuit board samples at temperatures that did not compromise the components on the board […]

Deep Insight

Lithium-sulphur batteries

Lithium-sulphur batteries suffer from short lifetimes from the polysulphide shuttle effect. Nick Flaherty reports on attempts to reduce this The most significant advantage that lithium-sulphur (LiS)

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Holding electronics together under high voltages and temperatures

While EVs may have much in common with consumer electronics, the combination of high voltages and powers, and the safety-critical nature of many of their systems, is providing some major headaches for printed circuit board assembly (PCBA) contractors and electronics manufacturing services (EMS) providers – headaches that vehicle OEMs won’t be able to cure with […]

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Efficiency record for EV solar cell

Toshiba has developed a transparent solar cell that can be used to boost the charging of EVs (writes Nick Flaherty). The cell uses copper oxide and has an efficiency of 8.4%, the world’s highest level for such as cell. It would sit on top of a flexible silicon solar cell on the roof or trunk […]
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