Busbars having stamped fusible links
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United States of America Patent
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Sep 5, 2023
Grant Date -
Oct 21, 2021
app pub date -
Feb 25, 2021
filing date -
Aug 23, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A battery interconnect may include a desired current capacity, integrated fusible links, and be manufacturable using cost effective techniques. In some embodiments, a battery interconnect includes a busbar and relatively thinner links. A busbar carries larger currents and accordingly its cross-sectional areas are relatively larger to reduce ohmic losses. A link carries a much smaller current, and a fusible link is configured to break the circuit when the current is above a threshold, thus requiring a relatively small cross-sectional area. These sometime disparate length scales are addressed using several techniques such as layering a busbar and a foil sheet and pressing portions of a busbar to form the links. The links can be affixed to a plurality of battery cells to connect the cells in parallel or series.
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