MUMBAI, India, Aug. 12 -- Intellectual Property India has published a patent application (202617054013 A) filed by Lg Energy Solution, Ltd. on April 28, 2026, for Lithium Secondary Battery.

Inventors include Oh, Il Geun; Oh, Song Taek; Yoon, Su Mi; Jo, Mi Ru; Seong, Jie Hyun; and Kim, Min Soo.

The application for the patent was published on August 07, 2026, under issue no. 32/2026.

Abstract: The present invention relates to a lithium secondary battery having high energy density and excellent lifespan characteristics. The lithium secondary battery according to the present invention comprises: a positive electrode including a single particle-type positive electrode active material having a D50 of 5.5µm-8µm; a negative electrode including a first negative electrode active material including a Si-C composite; and an electrolyte, wherein the irreversible capacity per unit area of the negative electrode is smaller than the irreversible capacity per unit area of the positive electrode.

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