Battery

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Why vacuum is vital in battery cell production

Vacuum processes play a crucial role in many stages of the battery cell production process, and category expert Leybold is pioneering new innovative, economical and sustainable manufacturing solutions that raise the bar in all areas.

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Webasto offers extra energy for commercial vehicles and mobile machines

Webasto is increasing the energy content of its traction batteries from 35 to 40 kW/h. The standardised product design of the new Standard Battery Pro 40 gives existing and new customers planning security for the coming years and facilitates multi-year electrification projects.

Battery repair and recycling

Electric vehicles (EVs) are facing some stiff headwinds in the market. Many are affected by depreciation significantly worse than that of comparable internal combustion engine (ICE) vehicles, the reluctance of dealerships to take them at trade-in time, along with escalating insurance premiums and some insurers refusing to cover them altogether, writes Peter Donaldson.

Deep Insight

Battery energy density

Nick Flaherty looks at strategies to get more power out of battery cells, which brings thermal management challenges. There are many ways to boost the energy density of an e-mobility platform’s powertrain. The materials in a battery cell can be improved to produce more energy, from silicon in the anode to new electrolytes. Solid state batteries under development, for example, can provide higher energy densities, stacking more cells closer together by addressing the materials and the packaging.

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Battery sealing

Nick Flaherty assesses the various materials and processes used to seal and protect a battery pack Sealing a battery pack safely is a key requirement for e-mobility systems. While there may be concerns about the ingress of moisture or dirt, there are also issues over venting gasses and preventing electromagnetic interference. As a result, the choice of materials and the processes for sealing a battery pack, including cleaning the surfaces, are a series of engineering trade-offs.

Grid

Pilot line provides double the battery density of lithium ion

Nissan has shown its pilot line for all-solid-state batteries, writes Nick Flaherty. The Yokohama Plant in Kanagawa Prefecture, Japan, will supply EVs in 2028, which means the platforms are currently under design.

Grid

All-solid-state sodium batteries closer to practical use

Researchers in Japan have developed a process that produces a sulfide solid electrolyte with the world’s highest sodium ion conductivity, writes Nick Flaherty. The synthesised material, developed at Osaka Metropolitan University, is a key contender for all-solid-state sodium batteries. The solid electrolyte, Na2.88Sb0.88W0.12S4, has a sodium ion conductivity about 10 times higher than required for practical use and a glass electrolyte with high reduction resistance.

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Wevo-Chemie prevents leakage during immersion cooling

Immersion cooling is an innovative technology being researched as a solution for cooling electric vehicle batteries, but one challenge is the need to prevent leakage. With this in mind, Wevo-Chemie has developed polyurethane-based products especially optimised with respect to their thixotropy.

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Bosch chooses DELO adhesives for mild-hybrid system

With 48 V batteries able to reduce vehicle carbon emissions by up to 15%, Bosch offers manufacturers a powerful solution with its mild-hybrid battery. An adhesive from DELO plays a substantial role in its integration.

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Comau joins zero-defect cell-production project

Comau has joined a pan-European energy transformation initiative in the field of e-mobility in support of the BATTwin project. The company will work with the project’s partners to identify and define crucial data parameters, hardware, software and digitalisation technologies that can be used to meet the goal of zero-defect cell production.

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