US Patent Application 18317094. SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS CONTAINING SECONDARY BATTERY simplified abstract

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SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS CONTAINING SECONDARY BATTERY

Organization Name

Contemporary Amperex Technology Co., Limited

Inventor(s)

Lei Huang of Ningde City (CN)

Changlong Han of Ningde City (CN)

Zeli Wu of Ningde City (CN)

Cuiping Zhang of Ningde City (CN)

SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS CONTAINING SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18317094 titled 'SECONDARY BATTERY AND BATTERY MODULE, BATTERY PACK, AND ELECTRIC APPARATUS CONTAINING SECONDARY BATTERY

Simplified Explanation

The patent application describes a secondary battery and battery module, battery pack, and electric apparatus that use this battery.

  • The secondary battery includes a positive electrode plate and an electrolyte.
  • The positive electrode plate has a positive electrode current collector and a positive electrode film layer.
  • The positive electrode film layer contains olivine-structured lithium-containing phosphate or its modified compound.
  • The electrolyte contains an organic solvent, specifically a first solvent represented by Formula 1.
  • The first solvent is made up of C1-C4 alkyl and C1-C4 haloalkyl.
  • The secondary battery has specific requirements:
 * The mass of the first solvent divided by the rated capacity of the battery must be greater than or equal to 0.7 g/Ah.
 * The mass of the electrolyte divided by the rated capacity of the battery must be less than or equal to 3.5 g/Ah.


Original Abstract Submitted

A secondary battery and a battery module, a battery pack, and an electric apparatus containing the secondary battery are provided. The secondary battery includes a positive electrode plate and an electrolyte. The positive electrode plate includes a positive electrode current collector and a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and the positive electrode film layer includes one or more of olivine-structured lithium-containing phosphate and its modified compound. The electrolyte includes an organic solvent, and the organic solvent includes a first solvent represented by Formula 1. Rand Rin Formula 1 each are independently one of C1-C4 alkyl and C1-C4 haloalkyl. The secondary battery satisfies: mass of first solvent/rated capacity of secondary battery is ≥0.7 g/Ah; and mass of electrolyte/rated capacity of secondary battery is ≤3.5 g/Ah.

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