The passage describes a test conducted on a next-generation battery cell developed by Donut Lab. Key points include:
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Testing Procedure: The battery cell was weighed, measured, fully charged, and discharged to assess its energy capacity, leading to calculations of gravimetric and volumetric energy density.
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Bipolar Structure: The cell features a bipolar architecture, confirmed by Intertek, allowing it to generate higher voltage internally by connecting electrochemical layers in series, rather than externally.
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Nail Penetration Test: A severe test involved driving a nail through a fully charged cell to simulate a short circuit. Unlike traditional lithium-ion batteries, the Donut Lab cell remained stable without catching fire or causing thermal runaway.
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Innovation Significance: The advancement of bipolar cells is compared to the transition from traditional lithium-ion batteries to solid-state batteries, promising increased energy density and reduced complexity and cost in battery packs.
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Collaboration: Donut Lab is collaborating with Intertek for third-party research to validate its technology.
For more details, visit Donut Lab and VTT and Intertek test reports.
