名爵MG4-固态电池部分

Core Viewpoint - The article discusses the advantages of manganese-based semi-solid-state batteries, emphasizing their safety and low-temperature performance, which could enhance the adoption of electric vehicles in colder regions [1]. Group 1: Safety Performance - The battery has a liquid content of 5%, which fundamentally prevents self-ignition, and it has been tested to withstand multiple punctures without emitting smoke or catching fire [1]. - The battery's design allows it to handle punctures from multiple directions, which typically increases short-circuit risks, yet it remains safe under such conditions [1]. Group 2: Low-Temperature Performance - At -10°C, the battery can charge from 10% to 80% in 39 minutes, while at -20°C, it takes 43 minutes, and at -30°C, it can support a discharge power of 100 kW, addressing the challenges of electric vehicle usage in colder climates [1]. Group 3: Technical Insights - The use of manganese-based cathodes is justified by their high voltage platform, good power performance, and excellent low-temperature characteristics [1]. - The compatibility of semi-solid-state technology with manganese-based cathodes is highlighted, as the semi-solid state prevents manganese dissolution that can occur in liquid systems, achieving over 3000 cycles at 1C rate [1]. - The company is progressing well with the development of all-solid-state batteries, which are soon to undergo vehicle testing [1].