SECONDARY BATTERY AND ELECTRONIC DEVICE
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United States of America
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Issued Date -
Apr 3, 2025
app pub date -
Sep 27, 2024
filing date -
Sep 27, 2024
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Abstract
A secondary battery includes a positive electrode plate and an electrolyte solution. The electrolyte solution includes a compound having sulfur-oxygen double bond and a nitrile compound. Based on a total mass of the electrolyte solution, a mass percentage of the compound having sulfur-oxygen double bond is A1 %, a mass percentage of the nitrile compound is A2%, 0.08≤A1/A2≤2.15; and a sum of the mass percentages of the compound having sulfur-oxygen double bond and the nitrile compound is A %, 3≤A≤15. The positive electrode plate includes a positive electrode material layer, a thickness of the positive electrode material layer is D μm, and 0.08≤A/D≤0.42.
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