Liyang Zhongke Haina is the weekend. According to the public information related to the query, the recruitment information released by the enterprise shows weekends. Zhongke Haina is a high-tech enterprise focusing on R&D and the production of a new generation of energy storage system-sodium ion battery. Its core patents have been authorized in the United States, Japan and the European Union, and it is one of the few battery enterprises in the world with core patents and technologies. The company has a research and development team led by Chen Liquan, an academician of China Academy of Engineering, and Hu Yongsheng, a researcher at Institute of Physics, Chinese Academy of Sciences. The company focuses on sodium ion battery products with long life, wide temperature range and high power, and its potential applications cover all kinds of short-life cars, start-stop power supplies, household energy storage, 5G communication base stations, large-scale energy storage and other fields.