▎ 摘　　要

NOVELTY - All-solid solid lithium secondary battery (10) has a cathode active material layer (200), a anode active material layer (100), and a solid electrolyte layer (300) arranged between the cathode active material layer and the anode active material layer, where the anode active material layer includes graphitized platelet carbon nanofibers and silver nanoparticles. USE - The all-solid solid lithium secondary battery is used as a unit cell, a battery pack including the battery module, and a device including the battery pack as a power source. The device includes a power tool that moves under the power of an omniscient motor (power tool); electric vehicles including electric vehicles (EVs), hybrid electric vehicles (HEVs), and plug-in hybrid electric vehicles (PHEVs); electric two-wheeled vehicles including electric bicycles (E-bikes) and electric scooters (E-scooters); electric golf carts; urban air mobility (UAM); and power storage systems. The secondary batteries is used for small fields such as mobile devices and notebook computers, medium and large fields such as energy storage systems (ESS) and electric vehicles. ADVANTAGE - The all-solid lithium secondary battery reduces lithium ions during charging so that lithium metal can be effectively stored. The graphitized platelet carbon nanofibers improve the initial charge/discharge efficiency and lifespan characteristics of the battery by increasing the mobility of the lithium ions. In addition, as the graphitized platelet carbon nanofibers are used, the movement of lithium ions can be effectively achieved even with a low content of silver nanoparticles, thus increasing the price competitiveness of the manufactured all-solid-state lithium secondary battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing the all-solid-state lithium secondary battery, comprising forming a dry mixed powder containing particles from the mixture of silver ions and graphitized platelet carbon nanofibers, silver ions are reduced to include silver nanoparticles arranged on the graphitized platelet carbon nanofibers and the graphitized platelet carbon nanofibers, and forming an anode active material layer on an anode current collector using an anode mixture including the dry mixed powder. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of the all-solid-state lithium secondary battery. 10All-solid-state lithium secondary battery 100Anode active material layer 110Anode current collector 200Cathode active material layer 300Solid electrolyte layer