The utility model provides a secondary module of lithium cell for electric automobile, includes a plurality of secondary modules, secondary module includes module shell, battery electricity core, rat tail and is used for holding the holding tank of battery electricity core, is equipped with the baffle between holding tank and the holding tank, the module shell constitutes by a plurality of holding tanks are vertical, and these module shell both ends are equipped with the end wing, is equipped with the fixed orifices on the end wing.