Energy storage system with low energy consumption and uniform temperature and method thereof

Abstract

The invention discloses an energy storage system with low energy consumption and uniform temperature and a method thereof. The energy storage system comprises a battery cluster, a water storage tank and a heat conduction assembly. The system has the beneficial effects that the heat conducting plates tightly contacted with the batteries are arranged on the upper, lower, left and right surfaces of the battery pack to achieve the effect of multi-surface three-dimensional heat dissipation, and the heat conducting plates are metal, so that the heat conducting effect is better, and the heat generated by the batteries can be quickly transferred away; the heat conducting plates are in contact with the water storage tank arranged in the container, then heat is conducted to water in the water storage tank, the temperature rises slowly due to the fact that the specific heat capacity of the water is large, and the temperature in the container is more uniform due to the fact that the water is in indirect contact with the batteries. And after the temperature of the water rises to a certain temperature, the water is changed, so that the purpose of controlling the efficiency is achieved by adjusting the water temperature and the water changing speed, and a heat exchange part of traditional liquid cooling does not need a complicated cooling pipeline design, so that the cost is greatly reduced, the energy consumption is less, natural heat dissipation is utilized, and the system is more environment-friendly.

Description

technical field [0001] The invention relates to an energy storage system, in particular to an energy storage system with low energy consumption and uniform temperature and a method thereof, belonging to the technical field of lithium ion batteries. Background technique [0002] At present, in the field of lithium-ion batteries, since the life of lithium-ion batteries will be shortened sharply at high temperatures, and even cause safety risks, lithium-ion batteries need targeted heat dissipation design, especially in high-power and long-term applications. Present technical scheme mainly adopts the method of air cooling, also known as air cooling and liquid cooling (mainly water cooling). In addition to using the air conditioner to cool down the overall temperature of the air cooling, a fan is generally installed on the battery pack, and the hot air in the battery pack is sucked out or cold air is blown in by the fan. Liquid cooling is to arrange liquid cooling pipes in the b...

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Problems solved by technology

[0005] 2. In the existing technical solution, liquid cooling is to use a heat pipe to wrap the battery, and the heat pipe is filled with water or coolant to conduct the heat of the battery pack in time, but its structure is complicated, the cost is high, and the heat exchange part also occupies A considerable part of the space inside the container, and its electricity load is high, the structural design is more complex, the initial cost is higher, maintenance is difficult, and it is not friendly to the environment

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