18335253. POSITIVE ELECTRODE ACTIVE MATERIAL FOR AQUEOUS POTASSIUM ION BATTERY, AND AQUEOUS POTASSIUM ION SECONDARY BATTERY simplified abstract (TOYOTA JIDOSHA KABUSHIKI KAISHA)

POSITIVE ELECTRODE ACTIVE MATERIAL FOR AQUEOUS POTASSIUM ION BATTERY, AND AQUEOUS POTASSIUM ION SECONDARY BATTERY

Organization Name

TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor(s)

Shigeki Sato of Fujinomiya-shi (JP)

Hiroshi Suyama of Mishima-shi (JP)

POSITIVE ELECTRODE ACTIVE MATERIAL FOR AQUEOUS POTASSIUM ION BATTERY, AND AQUEOUS POTASSIUM ION SECONDARY BATTERY - A simplified explanation of the abstract

This abstract first appeared for US patent application 18335253 titled 'POSITIVE ELECTRODE ACTIVE MATERIAL FOR AQUEOUS POTASSIUM ION BATTERY, AND AQUEOUS POTASSIUM ION SECONDARY BATTERY

Simplified Explanation

The disclosure presents a new positive electrode active material for an aqueous potassium ion battery and a novel potassium ion secondary battery.

• Positive electrode active material is represented by the general formula LiNiMnCoO, where 0≤x<1, 0≤y<1, and x+y<1.
• Aqueous potassium ion secondary battery comprises the positive electrode active material LiNiMnCoO.
• The battery includes an aqueous electrolyte solution with a pH of 4.0 to 13.0, containing an aqueous solvent and potassium pyrophosphate dissolved in the solvent.

• • Potential Applications:**

• Energy storage systems
• Portable electronic devices
• Electric vehicles

• • Problems Solved:**

• Limited energy storage capacity of current batteries
• Environmental concerns with traditional battery technologies

• • Benefits:**

• Higher energy density
• Improved safety due to the use of aqueous electrolyte
• Enhanced performance in a wide range of pH levels

Original Abstract Submitted

The disclosure provides a novel positive electrode active material for an aqueous potassium ion battery, and a novel potassium ion secondary battery. The positive electrode active material for an aqueous potassium ion battery is represented by the general formula LiNiMnCoO, where 0≤x<1, 0≤y<1 and x+y<1. The aqueous potassium ion secondary battery of the disclosure comprises a positive electrode active material which is represented by general formula LiNiMnCoO, where 0≤x<1, 0≤y<1 and x+y<1. The aqueous potassium ion secondary battery of the disclosure comprises an aqueous electrolyte solution, wherein the pH of the aqueous electrolyte solution is 4.0 to 13.0, and the aqueous electrolyte solution contains an aqueous solvent and potassium pyrophosphate dissolved in the aqueous solvent.