Panasonic intellectual property management co., ltd. (20240120560). CHARGING METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, CHARGING/DISCHARGING METHOD, AND CHARGING SYSTEM FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY simplified abstract

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CHARGING METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, CHARGING/DISCHARGING METHOD, AND CHARGING SYSTEM FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Organization Name

panasonic intellectual property management co., ltd.

Inventor(s)

Takashi Tsukasaki of Osaka (JP)

Yuto Horiuchi of Osaka (JP)

CHARGING METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, CHARGING/DISCHARGING METHOD, AND CHARGING SYSTEM FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240120560 titled 'CHARGING METHOD FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, CHARGING/DISCHARGING METHOD, AND CHARGING SYSTEM FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

Simplified Explanation

The abstract describes a charging method for a non-aqueous electrolyte secondary battery that involves switching the control temperature from high to low. The battery includes a positive electrode, a negative electrode with a carbon material and a silicon compound, and lithium ions for intercalation and deintercalation.

  • Explanation:

- Switching step from high to low temperature for non-aqueous electrolyte secondary battery - Battery includes positive and negative electrodes with lithium ion intercalation - Negative electrode has carbon material and silicon compound - Timing of switching step determined by ratio of capacity change in carbon material to silicon compound

    • Potential Applications:

- Electric vehicles - Portable electronic devices - Energy storage systems

    • Problems Solved:

- Improved battery performance - Enhanced safety during charging - Extended battery lifespan

    • Benefits:

- Increased energy density - Faster charging times - Enhanced overall battery efficiency

    • Potential Commercial Applications:

- Battery manufacturing companies - Electric vehicle manufacturers - Consumer electronics companies

    • Possible Prior Art:

- Prior art related to temperature control in non-aqueous electrolyte batteries - Previous patents on lithium ion battery charging methods

    • Unanswered Questions:

1. How does the switching of control temperature impact the overall performance of the battery? 2. Are there any specific safety measures in place during the switching step to prevent overheating or other issues?


Original Abstract Submitted

a charging method for a non-aqueous electrolyte secondary battery according to one aspect of the present disclosure comprises a switching step for switching the control temperature of a non-aqueous electrolyte secondary battery from high temperature to low temperature, wherein the non-aqueous electrolyte secondary battery includes a positive electrode and a negative electrode which reversibly perform intercalation and deintercalation of lithium ions, and the negative electrode contains, as a negative electrode active material, a carbon material and a silicon compound. the timing of the switching step is determined by detecting that dq/dq, that is, the ratio of the amount of change in a capacity qof the carbon material to the amount of change in a battery capacity q, becomes larger than dq/dq, that is, the ratio of the amount of change in a capacity qof the silicon compound to the amount of change in the battery capacity q.