Battery

Grid

Matrix aimed at seal and EMI issues

The Electrically and Thermally Conductive and Electromagnetic Interference Shielding Materials (ETEMI) project aims to enhance conventional elastomers, liquid silicon rubber and thermoplastics to address sealing and EMI issues at the same time in EVs. This is driving the development of a new class of electrically conductive sealing materials.

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Validating BMS performance

Battery management systems are becoming increasingly safety-critical, as they are responsible for balancing battery cells operating at several hundred volts and maintaining temperatures within narrow working ranges to prevent thermal runaway (writes Peter Donaldson). Gauging the performance of a BMS during r&d, validation, verification and production is therefore of vital and growing importance. Bloomy Controls’ new Flex BMS Validation System is focused on the validation part, particularly in situations where the developer needs to test more than one BMS design.

New Products

NeoGraf Solutions adds advanced graphene targets for energy storage markets

NeoGraf Solutions has extended its range of graphite materials with the launch of Graf-X graphene nanoplatelets (GNPs) and graphene precursors (GPs) for a range of energy storage applications.

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StoreDot announces eXtreme approach to charging

StoreDot is developing new a lithium-ion battery technology it calls eXtreme Fast Charging (XFC) that will enable an EV to charge in 5-10 minutes (writes Peter Donaldson). At the heart of it is a silicon-dominated anode that can accept lithium ions much faster than a graphite anode (thanks to silicon’s lower resistance) but controls

Focus on...

Battery recycling

Recycling batteries from e-mobility platforms, particularly lithium-ion and lithium iron phosphate (LFP) cells, is an area of increasing focus for the e-mobility industry.

Grid

Nanotech alloy ups HV power

The LISA (Lithium Sulphur for Safe Road Electrification) European project is developing a 20 Ah solid-state lithium-sulphur pouch cell with high gravimetric energy of 450 Wh/kg and volumetric energy density of 700 Wh/litre that will be stable for at least 1000 cycles. The first step is a proof-of-concept 21700 cylindrical cell with a capacity of 3 Ah.

PS

Towards a 1000-mile range

One thousand miles is a nice, round number, and as a range for a battery EV it is a marketing department’s dream. However, there is real value in such a long range if it can be achieved by a production roadcar in representative trim rather than niche vehicles and technology demonstrators.

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Finnish miner to supply Renault with sustainable battery chemicals

In early October, Terrafame announced a deal with Renault in which the Finnish mining company and battery chemicals producer is to supply the car manufacturer with low-carbon and fully traceable nickel sulphate for EV batteries

New Products

Multi-parameter sensor gives early warning of thermal runaway

Metis Engineering has announced the production version of its Battery Safety Sensor, a CAN-based device designed to detect a lithium-ion cell venting, an early sign of catastrophic EV battery failure.

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Battery vent protects against rapid rises in pressure

As the battery pack is the single heaviest and costliest component of an EV drivetrain, weight reductions in the pack pay dividends in terms of range as well as performance and handling. One of the ways battery manufacturers are looking to reduce weight is to produce packs with thinner walls, which means that they must operate at lower internal pressures and with those pressures carefully controlled.