Why Full-Tab Cell May Start A New Era of Cordless Power Tool?

In today's power tool industry, where the pursuit of high efficiency, convenience, and durability is relentless, battery technology innovation has emerged as a pivotal force driving the industry's development. Among these innovations, the full-tab cell (tabless cell) as a groundbreaking technology, is becoming the new favorite in the power tool industry. This article will delve into the advantages of full-tab cells over traditional tab cells and analyze their application prospects in the cordless power tool industry.

Advantages of Full-Tab Cells over Traditional Tab Cells

1. Optimized Structural Design for Significantly Reduced Internal Resistance

Traditional tab cells have a limited number of tabs (one or two), resulting in relatively long current transmission paths within the cell and high internal resistance. Full-tab cells, through ingenious structural design, utilize the entire edge of the electrode sheet as tabs, greatly increasing the current conduction area and shortening the current transmission path. This design significantly reduces internal resistance. Lower internal resistance means less energy loss during charging and discharging, enabling more efficient transmission of electrical energy and enhancing the overall performance and energy utilization efficiency of the battery. This innovative design allows full-tab cell batteries to reduce internal resistance by approximately 70% compared to traditional ones, significantly improving current transmission efficiency.

2. Faster Discharging for Enhanced User Experience

Due to the advantage of low internal resistance, full-tab cells can achieve faster discharging rates. During discharging, the full-tab cell can quickly release a large amount of electrical energy to meet the instantaneous high-power output demands of power tools. In contrast, traditional tab cells, due to their high internal resistance, have limited discharging rates and cannot meet the usage scenarios of some power tools that require high power output.

3. Improved Thermal Management for Enhanced Safety and Stability

Traditional tab cells, with their long current transmission paths and high internal resistance, are prone to local overheating, leading to increased battery temperature and affecting battery safety and stability. The low internal resistance and uniform current distribution of full-tab cells enable more even heat distribution and rapid dissipation, effectively reducing the battery's operating temperature and enhancing its safety and stability. This characteristic is particularly crucial in high-power applications of power tools, ensuring stable operation during prolonged high-intensity use.

4. Extended Cycle Life for Reduced Usage Costs

During the charging and discharging process, full-tab cells exhibit more uniform internal stress distribution, reducing electrode material damage and structural breakdown caused by excessive local current. Additionally, the better heat dissipation performance helps protect the internal chemical substances of the battery, slowing down the aging process. As a result, full-tab cells have a longer cycle life, capable of withstanding more charge and discharge cycles, thereby reducing users' usage costs.

Application of Full-Tab Cells in the Power Tool Industry

Against the backdrop of the global new energy industry's accelerated upgrading, battery technologies that combine high energy density with high safety are becoming the core driving force behind the development of high-end power tools. WINKKO, a rising force in the lithium-ion power tool industry, is committed to providing a series of high-end lithium-ion power tools compatible with different battery platforms. Its independently developed 40V platform, using 21700 full-tab cell, combines ternary lithium materials with full-tab design to significantly reduce internal resistance. This design enables WINKKO 40V battery pack to support continuous discharge currents above 60A, meeting the instantaneous high-power usage requirements under extreme working conditions.

Power tools often need to release a large amount of power instantaneously. The 40V battery pack of WINKKO composed of full-tab 21700 cells, with its low internal resistance characteristics, can quickly provide a large current, enabling tools to maintain strong power during startup and operation, easily handling various high-intensity tasks.

1. Garden Tools: such as lawn mowers and hedge trimmers, which require long continuous operation and high power. WINKKO 40V battery can provide sufficient power and endurance to meet the needs of gardening work.

2. Construction Tools: such as rotary hammers, angle grinders and welding machines, which need to withstand large loads during operation. The high-power output and stability of the full-tab cell battery pack ensure the normal operation of these tools and improve work efficiency.

Full-tab cell technology, with its high energy density, large current discharge capability, and long life, is reshaping the power tool industry. In the future, with advancements in fast charge technology, intelligent management and cost optimization, this battery technology will further drive the development of cordless power tools towards higher power, longer endurance, greater safety and reliability, undoubtedly becoming the mainstream choice in the power tool industry.