Prelithiation lithium ion start-stop power supply and preparation method thereof

• Main Authors: YU AIPING, HUANG MING, CHEN ZHONGWEI, XIONG JUNWEI, MAO ZHIYU
• Format: Patent
• Language: Chinese; English
• Published: 06.11.2018
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The invention discloses a prelithiation lithium ion start-stop power supply. The power supply comprises a positive electrode and a negative electrode. The positive electrode is mainly made of a LiNixCoyMnzO2/Li5FeO4 composite material, wherein x+y+z=1. A preparation method of the prelithiation lithium ion start-stop power supply is also provided. The preparation includes the steps of preparing theLiNixCoyMnzO2/Li5FeO4 composite material, preparing the positive electrode and the negative electrode of the power supply and assembling the positive electrode and the negative electrode into the lithium ion start-stop power supply. The start-stop power supply obtained by the preparation method has good specific energy, specific power, charge and discharge cycles and low temperature performance,and is suitable for industrial production. 本发明公开了种可预锂化的锂离子启停电源，包括正极和负极，其中正极主要由LiNiCoMnO/LiFeO复合材料制成，其中满足x+y+z＝1。本发明还提供了种可预锂化的锂离子启停电源的制备方法，包括制备LiNiCoMnO/LiFeO复合材料、制备电源的正极和负极、将正极和负极组装成锂离子启停电源等步骤。根据本发明提供的制备方法得到的启停电源具有良好的比能量、比功率、充