Preface

Lithium batteries play a significant role in modern society. They are widely used as power sources for 3C digital products, serve as the core power for new energy vehicles, and are rapidly developing in the field of electrochemical energy storage. With the arrival of the winter solstice, winter is gradually approaching; the performance of most rechargeable lithium batteries is greatly affected by ambient temperature. When the temperature is below 0 ℃ or above 40 ℃, the battery performance will rapidly decline, and even safety accidents may occur, severely limiting the use of lithium batteries in cold regions; therefore, the research and development of low-temperature lithium batteries is extremely necessary.

In recent years, with the optimization of materials and battery structures, the room temperature energy density of lithium batteries has been significantly improved. Considering the diverse global climate, such as the winter temperatures in high-altitude and high-latitude regions, which can be as low as -50 ℃, the slow ion transport at low temperatures leads to severe battery polarization and high internal resistance, causing a sharp drop in battery output voltage and capacity, resulting in a rapid decrease in energy and power density. Especially under low-temperature high-current conditions, this reduces output capacity and shortens battery life. However, developing such batteries is not an easy task, and this is precisely the area of expertise of Shenzhen Genju Technology Co., Ltd., which owns the research and development brands - Safude SAFD and Wowowor WORWORF.

Shenzhen Genju Technology Co., Ltd. is a national-level high-tech enterprise integrating research, development, production, and sales. It specializes in the research and development and production of high-quality potassium-ion batteries and owns its own research and development brands, Safude SAFD and Wowowor WORWORF. Our company maintains close cooperation with numerous universities and research institutions, and has established industry-academia-research cooperation with Central South University, Hunan University, and other universities.

The above is the WORWORF (Wowowor) low-temperature battery brand under Shenzhen Genju Technology Co., Ltd. Battery models include: 18650-32ML, 18650-30ML, 18650-26ML, 18650-15ML, 18500-20DBL. Products are mainly used in ski wear, snow cameras, hunting cameras, sports cameras, high-altitude snow flashlights, cold-region GPS positioning systems, cold-region signal transmitters, etc., and have passed UN38.3, IEC62133, MSDS, and CE certifications, as well as high-safety structural design, precise power-off, and pressure relief devices. Overcharge, over-discharge, over-temperature, and over-current protection are also included.

WORWORF (Wowowor) low-temperature batteries solve the pain point of people in cold regions often being unable to use electronic products due to low temperatures. Its developed 18500-20DBL battery cell can be used normally in environments from -40 ℃ to -60 ℃. At room temperature, it can output a maximum current of 4A (2C), and at -40 ℃, the capacity ratio of 0.4A (0.2C) reaches ≥70%.