SUSTAINABILITY SOLUTIONS
TAINABLE TRANSPORTATION Figure 2. Sentinel wBMS system–release 2021
pack, thereby ensuring trust between buyers and sellers. This will allow batteries to be treated as assets that can be used to recoup some of the initial investment and potentially pass those savings on to vehicle/fleet owners. Removal of the wiring harness aids in faster and cost-conscious disassembly of the battery packs, providing a seamless path to battery second-life reuse and recycle applications.
ELECTRIC TRANSPORTATION AND THE CLEAN ENERGY GRID As EVs proliferate, they create increased demand for charging stations and additional stress on the grid that is uniquely dynamic, in both time and space. Energy storage and conversion combined with energy management will transform EVs into a vital and valuable grid stabilization tool.
edge nodes to create battery pack and vehicle- level insights.
SYSTEM VALUE ACROSS THE ENTIRE BATTERY LIFE CYCLE OEMs are moving quickly to electrify their vehicle fleets. Let’s explore a few important opportunities to empower sustained value delivery.
Automated EV Manufacturing ADI Recharge eliminates the need for wiring harnesses. This enhances OEM’s robotic manufacturing capabilities so they are able to improve production line efficiency, reliability, battery pack assembly, and manufacturing costs. The system is supportive of all known battery chemistries, including low cost chemistries, and the increased modularity it provides to battery packs enables flexibility to scale EV production – from entry level to premium. As the wireless architecture is so robust, the software and network upgrades enable a reduction in battery material requirements. Compared to a wired network, the wireless
network can be implemented quickly and easily and this greatly decreases development cycle time. There are also architectural-level savings enabled by ADI’s seventh-generation cell monitoring sensor – the ability to sense up to 24 channels using a single IC reduces coupling requirements, and the superior EMC performance eliminates the need for external components such as capacitors.
Digital Twins for Battery Packs The age of the software vehicle is here. ADI’s system enables highly accurate digital twin services for battery packs. This targets first time right design by demonstrating ultra robust RF performance, long before prototypes are available. This aids with improved battery pack design and planning, allowing for a much higher return on investment when in the development stages.
Improved Vehicle Reliability Going wireless enables removing the wire harness, which not only saves cost but also removes
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potential sources of failure in the vehicle. Wires and connectors can weaken or fail over time. Furthermore, the platform can autonomously run deep battery tests during manufacturing and vehicle operations to detect the early signs of defects/failures, which could lead to severe safety issues for end customers.
Top Cybersecurity Qualification and the Battery Passport For the ecosystem to build new systems and value-added services around the battery data, transparency, security, and ease of deployment are critical. ADI brought this technology to mass production as a turnkey solution with security designed in at every level. ADI’s wBMS is certified to the highest standard of automotive cybersecurity (ISO 21434 CAL-4). Each wBMS IC contains a secure identity – a vital building block to the industry’s goal of a battery passport.
Better EV Operations and Performance The wBMS insight platform leverages ADI’s seventh-generation cell monitor sensors and edge algorithms to enable faster charging, extended range, and longer battery life, all while guaranteeing maximum safety. The ability to accommodate software updates ensures consistent improvements to the battery and powertrain performance. Secure wireless capability also means that the condition of the battery pack can be conveniently analysed. If a malfunction is detected, the wireless configuration simplifies removal and replacement.
A Seamless Transition to Battery Second Life As the battery packs account for >30% of EV retail price (2023), the entire value chain has an economic incentive to nurture a secondary market. wBMS can accurately track the health of the battery across its life to assign the resale value to the
Intelligent battery software and wireless links
delivered by ADI’s wBMS for EV and energy storage systems (ESS) can help coordinate the energy flow across the clean energy grid to manage supply and demand more efficiently and seamlessly. Dynamic charging rates can be used to optimise charging schedules and secure better electricity rates.
ACCELERATING A MORE SUSTAINABLE FUTURE EVs are just the beginning of a massive planetary- scale shift towards sustainability. Advanced technology solutions are needed on both sides of the charging cable. Batteries will continue to proliferate and grow in different types of chemistries, and new insights are required to enable a circular lifecycle for batteries. Achieving a sustainable future also means growing ethical practices, and battery chemistries that avoid the use of conflict minerals, such as zero-cobalt LFP, will continue to be favoured in the marketplace. Ultimately, by leveraging our innovations in
precision management, control and real-time signal processing, ADI is adding intelligence at the edge across each node of the ecosystem to ensure the reliable convergence of electric transportation and the clean energy grid for a more sustainable future.
Analog Devices
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Figure 3. Packs are easier to repair, reuse, and recycle ENERGY & SUSTAINABILITY SOLUTIONS - Winter 2023 11
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