Flexible packaging power lithium ion battery pack for electric automobile

• Main Authors: XU QIAN, SHE PEILIANG, YANG JIAN, CHEN BINGHUA, SUN QUAN, WANG LIFANG
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2010
• Subjects: BASIC ELECTRIC ELEMENTS; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

The invention discloses a flexible packaging power lithium ion battery pack for an electric automobile, comprising a battery box body, a battery cell, a heating and cooling device, a battery management circuit and a fixing and connecting piece. The inside of the battery box body is divided into a plurality of independent functional zones by a plurality of partition boards vertical to the box body; air ducts are arranged among the partition boards; the battery cell is fixed in the battery box body through a horizontal bar and a battery cover plate; monomers can be connected in series through a metal connecting strip; two lines of exhaust fans are arranged in the battery pack and hot blast air is exhausted out of the automobile through a corrugated tube; and a heating film is attached to the inner wall of the battery box body and the stable driving of the automobile can be ensured in a low-temperature environment. The battery pack has the advantages of light weight, high mass ratio energy and specific power, lo