NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
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United States of America Patent
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Issued Date -
Aug 1, 2024
app pub date -
May 18, 2022
filing date -
May 28, 2021
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Abstract
Disclosed is a nonaqueous electrolyte secondary battery having improved electron conductivity of an electrode and improved input and output characteristics. The nonaqueous electrolyte secondary battery includes a positive electrode containing a lithium-containing transition metal composite oxide as an active material, a negative electrode, and a nonaqueous electrolyte. The negative electrode contains titanium oxide particles that are particles of titanium oxide represented by general formula H2Ti12O25, a binder, and 0.3-5.0 weight percent of single wall carbon nanotubes with respect to the titanium oxide. The titanium oxide particles have a secondary particle size D50 of 1 to 15 μm and a secondary particle size D90 of 50 μm or less.
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