Battery system with battery management system, storage system for storing electrical energy with such a battery system and method for putting into operation of such a battery system

摘要

The invention relates to a battery system comprising secondary cells having a storage capacity of more than two kWh, comprising the following features: a first battery (1) having two first terminal poles (10) and a first battery housing (11) having a first battery housing surface, at least one further battery ( 2) with two further terminal poles (20) and a further battery housing (21) with a further battery housing surface and a control system for controlling the battery system voltage, wherein one of the two first connection poles (10) of the first battery (1) as a first connecting pole by means of a Batteriepolverbinders (3) with one of the two further connection poles (20) of the further battery (2) as a second connection pole is mechanically coupled and a coupling region of the first battery housing surface (110) is positively arranged on a coupling region of the other battery housing surface (210). According to the invention, the control system has battery voltage regulator units (4) arranged in the region between the two first connection poles (10) and in the region between the two further connection poles (20) and in each case in electrical contact with the two connection poles (10, 20). Furthermore, the invention relates to a storage system for storing electrical energy with the aid of a battery system according to the invention and a method for starting up a battery system.