On December 4, 2014, the chief engineer and deputy chief engineer of CSR Ziyang Locomotive Co., Ltd visited Kelong Group, New Taihang company and accompanied by chairman and president of Kelong Cheng Qingfeng, vice president Cheng Di, chief engineer Song Erhu, chief engineer Mu Peizhen of New Taihang, director of the research institute Zhang Hongbing, division general manager of Lithium-ion company Pan Jianming. On that morning, two experts of Ziyang locomotive visited Kelong exhibition hall. Bao Yingying, Kelong deputy director of the office, introduced the achievements and recent developments of the three main industries elaborately. Group chairman communicated the thermal management problem of the lithium battery system of 2500KW hybrid electric locomotive with the visitors. The two experts heard the introduction and said New Taihang should make good use the internal strengths of Kelong, especially in solving current problems by