인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Garnet-type Li<sub>6.5</sub>La<sub>3</sub>Zr<sub>1.5</sub>Ta<sub>0.5</sub>O<sub>12</sub> (LLZO) has emerged as a highly promising solid electrolyte for next-generation Li metal batteries due to its high Li<sup>+</sup> conductivity and stability against metallic lithium. However, its practical application is hindered by poor interfacial contact between Li and LLZO, as well as the persistent issue of lithium dendrite formation during cycling. In this study, a novel and efficient strategy is proposed to address these challenges by employing a room-temperature ultrasonic treatment combined with a LiMg alloy anode. The fabricated symmetrical UW-LiMg/LLZO/UW-LiMg cell exhibits a low interfacial resistance and achieves an unprecedented critical current density of 4.45 mA cm<sup>-2</sup>. Furthermore, these cells demonstrate excellent cycling stability, maintaining stable lithium plating/stripping for over 1000 h at a high current density of 1 mA cm<sup>-</sup> <sup>2</sup> with a low overpotential of ≈30 mV. The superior performance is attributed to the enhanced anode ductility achieved through Mg alloying and the formation of an ultra-stable interface layer. The all-solid-state UW-LiMg/LLZO/LiFePO<sub>4</sub> battery, incorporating an ultrasonically treated alloy anode and a fluorinated cathode interface, delivers a specific capacity of 153 mAh g<sup>-1</sup> at 0.5 C and retains an impressive capacity retention of 90% after 200 cycles at room temperature.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.