Patent · US Active

Non-aqueous electrolyte secondary battery

US10388945B2 · kind B2 · utility

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1References
11Claims
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Key dates

Filing dateNov 20, 2015
Grant dateAug 20, 2019
Priority date
Expiry dateNov 20, 2035

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02T10/70
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A nonaqueous electrolyte secondary battery includes a positive electrode including a positive electrode mix layer, a negative electrode, and a nonaqueous electrolyte. The positive electrode mix layer contains a lithium transition metal oxide containing zirconium (Zr) and also contains a phosphate compound. The nonaqueous electrolyte contains a linear carboxylate. According to this configuration, the nonaqueous electrolyte secondary battery, which has excellent low-temperature output characteristics, can be provided. Thus, the nonaqueous electrolyte secondary battery is, for example, a power supply for driving a mobile data terminal such as a mobile phone, a notebook personal computer, a smartphone, or a tablet terminal and is particularly suitable for applications needing high energy density. Furthermore, the nonaqueous electrolyte secondary battery is conceivably used for high-output applications such as electric vehicles (EVs), hybrid electric vehicles (HEVs), and electric tools.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.