This technology relates to arapid-chargeable lithium secondary battery and a method for manufacturing thesame, and is applicable to various portable electronic devices. In particular,this technology is designed to enhance performance, durability, stability, andapplicability based on core materials, structures, processes, or deviceconfigurations related to a rapid-chargeable cathode active material, a methodfor manufacturing the same, and a lithium secondary battery equipped with sucha cathode active material and a method for manufacturing the same.
It aims to solve the problems of lowcharging speed and rapid degradation of the cathode in lithium secondarybatteries, particularly in high-loading level applications such as electricvehicles. Accordingly, this technology applies a cathode active material for alithium secondary battery having a siloxane coating layer formed on the surfaceof a carbon-containing material as a core means, and proposes a technicalconcept that implements the formation of a uniform siloxane coating layer onthe surface of the carbon-containing material, thereby improving lithium ionmobility and enhancing high-rate charging characteristics.
Accordingly, the present invention isexpected to improve the energy density and performance of lithium secondarybatteries by improving high-rate charging characteristics and booster chargingcapabilities in high-loading level applications, and can simultaneously enhancereproducibility, scalability, and process suitability in actual usageenvironments. Furthermore, it can be utilized as a high-performance material,device, battery, sensor, apparatus, or manufacturing process in relatedindustries, making it advantageous in terms of subsequent commercialization anddemonstration development.
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