NOVEL ELECTROLYTE FOR LITHIUM-ION BATTERIES

    公开(公告)号:US20250096307A1

    公开(公告)日:2025-03-20

    申请号:US18499309

    申请日:2023-11-01

    Abstract: In an embodiment, an electrolyte includes a lithium salt and a cosolvent, where the cosolvent comprises a cyclic carbonate-containing solvent and a linear carbonate-containing solvent. In an embodiment, a battery includes an anode, a cathode, an electrolyte and a separator. The anode includes an anode current collector and an anode active layer. The anode active layer comprises a lithiated silicon oxide or a combination of lithiated silicon oxide and carbon present in an amount of 20 wt % or greater, based on a total weight of the anode active layer. The cathode includes a cathode current collector and a cathode active layer. The electrolyte includes a lithium salt and a cosolvent that includes a cyclic carbonate-containing solvent and a linear carbonate-containing solvent.

    BATTERY CELLS WITH WELD-FREE EXTERNAL LEAD TABS

    公开(公告)号:US20240234885A1

    公开(公告)日:2024-07-11

    申请号:US18358470

    申请日:2023-07-25

    CPC classification number: H01M50/172 H01M10/0459 H01M50/533 H01M50/538

    Abstract: A battery cell comprises an electrode stack including A anode electrodes with A anode current collectors. A external tabs extend from the first side of the A anode electrodes. C cathode electrodes include C cathode current collectors and C external tabs. A separator comprises a continuous sheet interleaved between the anode electrodes and the C cathode electrodes. The A external tabs of the A anode electrodes are folded along the separator on the first side of the A anode electrodes. The C external tabs of the C cathode electrodes are folded along the separator on the second side the C cathode electrodes. The electrode stack is arranged in a housing. First and second tab positioning members including first and second external lead tabs are connected to the A external tabs and the C external tabs, respectively.

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