Introduction on Heat Dissipation Technology of Energy Storage Battery,
Energy storage battery,

▍What is WERCSmart REGISTRATION?

WERCSmart is the abbreviation of World Environmental Regulatory Compliance Standard.

WERCSmart is a product registration database company developed by a US company called The Wercs. It aims to provide a supervision platform of product safety for supermarkets in US and Canada, and make product purchasing easier. In the processes of selling, transporting, storing and disposing products among retailers and registered recipients, products will face increasingly complicated challenges from federal, states or local regulation. Usually, the Safety Data Sheets (SDSs) supplied along with the products do not cover adequate data of which information shows compliance with laws and regulations. While WERCSmart transforms the product data to that conforming to laws and regulations.

▍Scope of registration products

Retailers determine the registration parameters for each supplier. Following categories shall be registered for reference. However, the list below is incomplete, so verification on registration requirement with your buyers is suggested.

◆All Chemical Containing Product

◆OTC Product and Nutritional Supplements

◆Personal Care Products

◆Battery-Driven Products

◆Products with Circuit Boards or Electronics        

◆Light Bulbs

◆Cooking Oil                      

◆Food dispensed by Aerosol or Bag-On-Valve

▍Why MCM？

● Technical personnel support: MCM is equipped with a professional team who studies SDS laws and regulations for long. They have in-depth knowledge of the change of laws and regulations and have provided authorized SDS service for a decade. 

● Closed-loop type service: MCM has professional personnel communicating with auditors from WERCSmart, ensuring smooth process of registration and verification. So far, MCM has provided WERCSmart registration service for more than 200 clients.

Battery thermal dissipation technology, also called cooling technology, is essentially a heat exchange process that reduces the internal temperature of the battery by transferring heat from the battery to the external environment through a cooling medium.it is currently used on a large scale in traction batteries, as well as energy storage batteries, especially those of container ESS. Li-ion batteries are as sensitive to temperature as chemical reaction catalysts in the actual usage. Therefore the purpose of heat dissipation is to provide an appropriate working temperature for the battery. When the temperature of Li-ion battery is too high, a series of side reactions such as decomposition of solid electrolyte interface film (SEI film) will occur inside the battery, which greatly affects the battery life cycle. However, when the temperature is too low, the performance of the battery will age faster and there exist a risk of lithium precipitation, which lead to a rapidly reduced discharging capacity and a limited performance in cold areas. What’s more, the temperature difference between the single cells in the module is also a factor that should not be ignored. Temperature difference beyond a certain range will lead to unbalanced internal charging and discharging, resulting in capacity deviation. In addition, the temperature difference will also lead to an increase in the heat generation rate of the cells near the load point, leading to battery failure.In some medium and high rate products, due to the high charging and discharging current, the heat inside the module cannot be dissipated quickly and effectively by natural cooling alone, as it will easily cause the heat accumulation inside and affect the cycle life of the cells. Therefore, the forced air cooling method is more suitable for the application scenario of medium and high rate energy storage products.