Battery system and fuel cell system

A solenoid valve for anode supply of a fuel cell system, the solenoid valve configured as an exhaust valve or a drain valve, comprising: an actuator comprising a solenoid coil configured to electromagnetically actuate an armature and a valve plunger operatively connected with the armature; a valve seat which can be opened and closed as a function of the actuation of the valve plunger in order to control the media connection between the inlet and the outlet via the valve chamber, the valve seat and the inlet being formed at a connection orifice connected to the actuator, and wherein an additional electromagnetic coil is provided as a heating coil. 一种用于燃料电池系统的阳极供给的电磁阀，所述电磁阀被构造为排气阀或排水阀，其包括：致动器，该致动器包括电磁线圈，该电磁线圈被构造成对电枢和与电枢操作性地连接的阀柱塞进行电磁致动；阀座，所述阀座能够根据阀柱塞的致动而打开和关闭，以便通过阀室控制入口与出口之间的介质连接，其中，阀座和入口被构造在与致动器连接的连接管口处，并且其中，设置附加的电磁线圈作为加热线圈。