Kiribati cylindrical lithium battery pack

The cylindrical lithium-ion battery boasts mature production technology with high yields. Models like 14650, 17490, 18650, 21700, and 26500 are among the many cylindrical battery types available. This type's production process is mature, resulting in lower PACK costs, higher battery product yield, and consistent PACK quality.

There are three primary forms of lithium-ion battery packaging: cylindrical, square, and soft pouch. Each packaging structure has distinct characteristics, with its own set of advantages and drawbacks. In recent years, the soft pouch battery's market share has been progressively increasing.

Well-established production companies in China, Japan, South Korea, and the United States, such as SANYO, SONY, LG, and Wanxiang A123, specialize in cylindrical batteries. Prismatic battery cells typically use aluminum alloy or stainless steel shells, adopting an internal winding or overlapping process.

The cylindrical battery format facilitates various combinations and suits the comprehensive layout of electric vehicle space designs. However, these batteries are usually crafted from steel or aluminum, making them heavier with relatively lower specific energy.

While square batteries work well for regular electronic products, standard cylindrical lithium-ion batteries are preferred for industrial equipment, ensuring a streamlined production process and easier battery replacements in the future.

The rise of pouch power lithium-ion batteries in new energy passenger cars has been evident. For instance, BaiC, Changan, Dongfeng, and other high-end domestic electric vehicles have adopted pouch power lithium-ion batteries.