Since BYD launched its blade battery, it has been committed to battery safety, and various companies have launched their own unique battery technologies.
What are the characteristics of each of them?
The blade battery gets its name from its blade-like shape. Because it uses lithium iron phosphate material, which is inherently safer than ternary lithium materials, it already has an advantage from a material perspective.
Furthermore, compared to traditional batteries using the same materials, the blade battery's elongated structure provides a larger heat dissipation area, but also results in a longer circuit loop and lower heat generation. In summary, lower heat generation and better heat dissipation significantly reduce the probability of thermal runaway or spontaneous combustion.
The jelly battery is a product of SVOLT Energy, a rising star in the battery industry. It is a gel battery based on cobalt-free cathode and electrolyte materials, boasting excellent conductivity, self-healing properties, and flame retardancy. It prevents heat diffusion without compromising electrical performance.
According to the official statement, the jelly battery can withstand needle penetration and high temperature tests. The results show that the jelly battery can not only withstand a high temperature of 150 degrees Celsius, but also achieves non-flammability, non-smoke, and self-healing. However, since it is still in the confidential stage, the test video was not played at the Honeycomb Energy Battery Day event.
The magazine-style battery was launched by GAC Group. It is understood that the magazine-style battery is not simply a change in cell packaging, but a complete system engineering project, including improvements to the internal structure of the cells, technological innovations in packaging methods, a completely redesigned heat dissipation system, a thorough upgrade of the monitoring chip, and a rewrite of the battery management software.
The "magazine battery" increases the stability of the battery cell by innovatively coating the positive electrode and adding repair agents and heat-resistant agents. Even in the event of thermal runaway, the magazine-style safety compartment will contain the danger within the compartment and prevent it from spreading. At this time, the rapid cooling system will quickly dissipate the temperature of the problematic battery cell until it is extinguished.
The Amber Battery is actually a "three-no" battery launched by Dongfeng Motor's Voyah, which is "smokeless, fireless, and explosion-free." According to Voyah's official introduction, the "three-no" feature is due to three factors: the three-dimensional heat insulation wall design of the battery cells, the battery safety monitoring and early warning model, and the battery PACK design.
The heat insulation wall technology is the core of Voyah's battery's ability to prevent smoke during thermal runaway. Its principle involves using ultra-strong polymer heat-insulating and flame-retardant materials within the battery pack to separate each cell and individually encapsulate it in a three-dimensional manner, much like "amber." Voyah's "three-free battery" is therefore also known as the "amber battery."
In addition to the cell heat insulation wall technology, Voyah also utilizes the BMS cloud-based system for big data analysis and tracking of batteries at the software level. There's also a "cage-type" battery pack solution. Voyah has implemented five major design features for the battery structure: customized body protection, high-strength frame, pressure transmission, deformation energy absorption, and dual battery insurance.
In addition, there are Sunwoda's battery system that does not catch fire and BAK's "safe even in case of runaway" battery technology, which together contribute to making batteries safer and are practitioners of the ever-evolving battery technology!
