Lithium electrode, lithium secondary battery comprising same, battery module comprising lithium secondary battery, and preparation method of lithium electrode

• Main Authors: KIM TAEK GYOUNG, YANG DOO KYUNG, PARK CHANGHUN, JANG MINCHUL, CHOI JUNGHUN, SON BYOUNGKUK, SONG MYEONGHUN
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The application relates to a lithium electrode, a lithium secondary battery comprising the same, a battery module comprising the lithium secondary battery, and a preparation method of the lithium electrode. In particular, the lithium electrode comprises: a lithium metal layer having a hydroxyl group on the surface thereof; and a silicon layer disposed on the lithium metal layer and comprising a silicon-based compound, wherein the silicon-based compound in the silicon layer is covalently bonded to the hydroxyl group in a lower film contacting the silicon layer. 本申请涉及锂电极，包含所述锂电极的锂二次电池，包含所述锂二次电池的电池模块，和所述锂电极的制备方法。特别地，所述锂电极包含：在表面上具有羟基的锂金属层；和设置在所述锂金属层上并且包含硅类化合物的硅层，其中所述硅层中的硅类化合物与接触所述硅层的下部膜中的羟基共价键合。