Patent ID: 7758999

Claim:
A secondary battery module comprising: at least three battery cells, each battery cell having a protruded surface and a leveled surface opposite to the protruded surface, wherein the protruded surfaces of neighboring battery cells of the at least three battery cells face each other and the leveled surface of one of the neighboring cells and the leveled surface another adjacent battery cell of the at least three battery cells face each other; at least one fixing block disposed along an edge of the protruded surface of a corresponding battery cell, the fixing block fixing neighboring battery cells of the at least three battery cells to each other; at least one air guide block disposed along at least a part of an edge of the leveled surface of the corresponding battery cell, the air guide block defining an air channel and comprising a protrusion, wherein the protrusion converts laminar air flow to turbulent air flow, and the turbulent air flow discharges heat from the battery module to the outside; conductive connection members and insulating connection members, which interconnect electrode terminals of the battery cells in series; and a plurality of fasteners, which integrally fix the battery cells, the fixing blocks and the air guide blocks, wherein the fixing block defines a hollow and surrounds the protruded surfaces of the neighboring battery cells of the at least three battery cells, and the fixing block comprises a supporter, which has a dimension which is greater than a corresponding dimension of the neighboring battery cells of the at least three battery cells.