WORWORF 18500 20DBL News

2023-11-10

WORWORF 18500 20DBL specification：WORWORF18500 20DBL Specification.pdf

Foreword

Lithium batteries play a role in modern society, not only widely used as a power source for 3C digital products, but also become the core power of new energy vehicles, and also show a rapid development trend in the field of electrochemical scale energy storage; With the arrival of the Winter Solstice solar term, winter is coming. The performance of most rechargeable lithium batteries is greatly affected by the ambient temperature. When the temperature is lower than 0 ° C or higher than 40 ° C, the battery performance will rapidly decay, and even safety accidents will occur, which seriously limits the use of lithium batteries in cold and high temperature areas; Therefore, the research and development of low-temperature lithium batteries is necessary.

In recent years, with the optimization of materials and battery structure, the room temperature energy density of lithium batteries has been significantly improved. Considering the diversification of the global climate, such as the winter temperature of high altitude and high latitude areas even as low as -50 ° C, due to the slow ion transmission at low temperatures, the battery polarization is serious and the internal resistance is large, the battery output voltage and capacity drop sharply, resulting in rapid decay of energy and power density. Especially in the low temperature large current, thereby reducing the output capacity and shortening the battery life, but the development of such cells is not easy, and this is the field of Shenzhen Root giant Technology Co., Ltd. is good at, its research and development brands - SAFD and WORWORF.

Shenzhen Genju Technology Co., Ltd. is a national high-tech enterprise integrating research and development, production and sales. Professional R & D and production of high-quality potassium ion cells, with independent research and development brands SAFD and WORWORF. Our company has close cooperation with many universities and scientific research institutions, and has reached industry-university-research cooperation with Central South University, Hunan University and other universities.

The above is the WORWORF low-temperature battery brand under Shenzhen Genju Technology Co., LTD. The battery models are: 18650-32ML, 18650-30ML, 18650-26ML, 18650-15ML, 18500-20DBL. The products are mainly used in ski wear, snow camera, hunting camera, sports camera, alpine snow flashlight, cold GPS positioning system, cold signal transmitter, etc., and passed the UN38.3, IEC62133, MSDS, CE certification, and high safety structure design, accurate power failure, pressure relief device. At the same time, over-charge, over-discharge, over-temperature, over-current protection is set.

WORWORF low-temperature battery solves the pain point that people in cold areas often cannot use electronic products because of low temperature, and the 18500-20DBL battery developed by WORWORF can be used normally in the environment of -40 ° C to -60 ° C. Maximum output 4A current (2C) at room temperature, 0.4A (0.2C) capacity ratio at -40℃ ≥70%.

WORWORF18500-20DBL battery

As usual, let's take a look at the appearance of this battery cell.

The WORWORF18500-20DBL cell is designed as a cylinder, and adopts gray cell jacket color, and the jacket color can be adjusted according to requirements to meet the diversified needs of customers.

WORWORF18500-20DBL cell has cell inkjet code on the other side:
“WWF 18500 20DBL”
Rated power: 2000mAh@0.2C;
Nominal voltage: 3.6V; Nominal energy: 7.2Wh;
Ac internal resistance: ≤55mΩ

WORWORF18500-20DBL cell negative electrode contact surface is made of alloy metal material, anodic oxidation process, durable anti-corrosion.

The positive contact surface of WORWORF18500-20DBL cell is still made of alloy material, and the four solder joints of the round sheet are more stable.

WORWORF18500-20DBL cell cylinder height is about 48.8mm.

The diameter of the WORWORF18500-20DBL core column is about 18.1mm.

The WORWORF18500-20DBL cell weighs about 35.2g.

The WORWORF18500-20DBL cell is relatively small in the hands of an adult man.

Charging head network summary

For people in cold areas, low-temperature batteries can provide great convenience, workers in cold areas can ensure the operation of electronic products when working outdoors, WORWORF low-temperature batteries in the environment of minus 40 degrees Celsius performance is greater than or equal to 65% of the capacity, specially developed for low-temperature use.

Shenzhen Root giant Technology Co., Ltd. aims at the development trend of the market, the low-temperature battery as the core technology, for the cold area to create durable and safe high-quality low-temperature cell, the safety, stability, cost-effective lithium battery products as the standard, for different customer needs, to provide directional research and development, private customized services; The company has a fully automated battery production line, and the robot transfer and equipment connection are realized between the assembly process. Automatic flow, high manufacturing efficiency, fast turnover of pole sheet and coil core, no water absorption, no pollution, with high-quality cells to help the development of low-temperature cells.

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