Dukosi chip-on-cell technology helps hit next-gen EV battery targets

Stellantis recently claimed current electric vehicle batteries are “just too heavy”, making vehicles “not compatible” with sustainability targets currently. Stellantis indicated it aims to reduce battery weight by at least 50% by 2030 as part of its long-term efforts.

With this in mind, Dukosi developed their chip-on-cell solution with contactless near-field communications that can reduce battery weight by a few kilos (depending on the size and configuration). Dukosi claims in a typical EV battery, this technology can reduce component count by 10x, and improve reliability by up to 2x.

They mentioned their solution measures cell parameters, such as voltage and temperature at each cell, and provides highly accurate, granular cell data that can generate new insights into long-term battery performance and reliability.

The solution uses a bus antenna for contactless communication with every Dukosi Cell Monitor IC, eliminating complex wiring harnesses and other components typically found in traditional wired architectures. Configuring packs for different market segments or multiple product platforms is as simple as adding or removing cells from the pack. This avoids the frequent ‘one pack size for everything’ approach to manufacturing and facilitates the introduction of new pack formats that can reduce material costs, shipping costs, and weight.

Weight reduction and better data quality combined can potentially increase the vehicle’s range from the existing battery capacity.

Besides a simpler and lighter battery pack, Dukosi enables safer batteries with 24/7 monitoring of every cell’s voltage and temperature, identifying abnormal conditions immediately, including when the BMS controller is on standby.

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