Panasonic intellectual property management co., ltd. (20240250284). LITHIUM PRIMARY BATTERY simplified abstract

LITHIUM PRIMARY BATTERY

Organization Name

panasonic intellectual property management co., ltd.

Inventor(s)

NAOAKI Nishimura of Osaka (JP)

TADAYOSHI Takahashi of Osaka (JP)

KYOSUKE Okazaki of Osaka (JP)

FUTOSHI Tanigawa of Osaka (JP)

LITHIUM PRIMARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240250284 titled 'LITHIUM PRIMARY BATTERY

The abstract describes a lithium primary battery with an outer can, wound-electrode assembly, and non-aqueous electrolyte. The wound-electrode assembly includes a positive electrode with manganese dioxide, a negative electrode with metallic lithium or a lithium alloy, and a separator wound between them. The negative electrode faces the positive electrode and has specific surface area and thickness requirements.

• Positive electrode contains manganese dioxide
• Negative electrode contains metallic lithium or lithium alloy
• Specific surface area and thickness requirements for negative electrode
• Outer can diameter and distance between can and electrode assembly have specific ranges

Potential Applications: - Portable electronic devices - Medical devices - Automotive applications

Problems Solved: - Improved energy storage capacity - Enhanced battery performance - Longer battery life

Benefits: - Higher energy density - Longer shelf life - Reliable power source

Commercial Applications: Title: Advanced Lithium Primary Battery for High-Performance Devices This technology can be used in various commercial applications such as: - Consumer electronics - Electric vehicles - Aerospace industry

Questions about Lithium Primary Battery Technology: 1. How does the specific surface area of the negative electrode impact battery performance?

  The specific surface area of the negative electrode affects the overall capacity and efficiency of the battery by influencing the contact area with the electrolyte and the rate of lithium ion transfer.
  

2. What are the advantages of using a non-aqueous electrolyte in lithium primary batteries?

  Non-aqueous electrolytes offer higher energy density, wider operating temperature range, and better stability compared to aqueous electrolytes.

Original Abstract Submitted

a lithium primary battery includes an outer can, a wound-electrode assembly, and a non-aqueous electrolyte. the wound-electrode assembly includes a positive electrode, a negative electrode, and a separator which are provided between the electrodes and are wound together. the positive electrode contains manganese dioxide. the negative electrode contains at least one substance selected from the group consisting of metallic lithium and metallic lithium containing a lithium alloy, and has a first main surface and a second main surface opposite to the first main surface. the first main surface and an entirety of the second main surface of the negative electrode face the positive electrode. the total area s of the first main surface and the second main surface of the negative electrode satisfies 250 cm≤s≤700 cm. the thickness tp of the positive electrode satisfies 0.8 mm≤tp≤1.4 mm. the outer diameter d of the outer can satisfies 25 mm≤d≤37 mm. the distance c between the outer can and the wound-electrode assembly satisfies 0.3 mm≤c≤1.0 mm.