The invention relates to an
electrochemical energy storage device capable of preventing
spontaneous combustion and a monitoring method of the
electrochemical energy storage device, efficient operation and all-around safety protection of the
energy storage device are achieved through intelligent
temperature control, automatic adjustment and
fault handling, and the device comprises a plurality of
energy storage units and at least one standby
energy storage unit. Intelligent
temperature control and cooling adjustment are achieved through the adjusting ring and the strain column, when the temperature of the
battery cell rises, the adjusting ring automatically adjusts the flow of cooling liquid, and the heat dissipation effect is enhanced; if the temperature of the
battery cell is continuously too high, the strain column expands to disconnect the conductive column, a circuit is automatically
cut off, fire hazards caused by overheating are prevented, meanwhile, the fault
battery cell can be automatically popped out through the cooling liquid
softening release plate, it is ensured that the battery
cell can be rapidly isolated under the conditions of
spontaneous combustion and the like, and in addition, the
system can be automatically switched to the standby energy storage unit; the continuous and stable operation of the device in case of failure is ensured, and an efficient, safe and intelligent
electrochemical energy storage solution is provided.