Hierarchical Porous Inorganic Oxide, Method for Manufacturing the Same, and Lithium Secondary Battery Comprising the Same

Hierarchical Porous Oxides with Coexisting Meso- and Macropores via Evaporation-Induced Self-Assembly

This technology maximizes ion transport performance by producing hierarchical porous inorganic oxides with coexisting meso- and macropores through an evaporation-induced self-assembly (EISA) process using amphiphilic block copolymers and metal precursors.

Conventional colloidal template methods suffer from complex processes and low mechanical strength, while methods using only block copolymers face technical limitations such as irregular structures caused by macrophase separation.

By precisely controlling the self-assembly behavior of block copolymers through the addition of acids like nitric acid (HNO3) and the regulation of evaporation rates, this technology creates structurally stable and highly interconnected macro- and mesopores, providing a distinct competitive edge in the secondary battery market.

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Key Features:

• Hierarchical porous inorganic oxide comprising a mesoporous inorganic oxide containing multiple mesopores and one or more macropores surrounded by said mesoporous oxide
• Structure in which the mesoporous inorganic oxide is formed to include a niobium-titanium composite oxide
• Porous inorganic oxide manufactured via an evaporation-induced self-assembly process using amphiphilic block copolymers and metal precursors
• Hierarchical porous structure that enhances ion transport performance by forming coexisting meso- and macropores

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