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About us

 Hebei Xin Power New Energy Technology Co., Ltd

Hebei Xin Dong Li New Energy Technology Co., LTD. was established in Baoding City,  Hebei Province, China, invested 30 million, focusing on the research and development, design, production and sales of lithium battery, is a professional domestic lithium battery system solutions and product provider.

Our company has a strong technical force, leading production technology, sophisticated production equipment, advanced detection instruments, perfect detection method, independent research & development and production of lithium battery products in the domestic leading position.

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choosing us for more professional

Better quality sales champion

01

Over ten years experience

Three years of market research, insight into the global industry technology trends, understand the relevant industrial application areas of product demand

The research and development of a series of specialized equipment: power lithium battery, energy storage lithium battery, special lithium battery, low-temperature resistant lithium battery, solar street lamp lithium battery, etc., to meet various application fields

02

Strong R&D strength is our guarantee to meet

We import all raw materials and cooperate closely with BASF, DSM, TEGO, BYK and other famous international suppliers to create international cutting-edge products

Professional high diploma senior R&D engineer, more than ten years of R&D experience, R& D team strength


03

Perfect after sales service system

we have select model and process design service pre-sale, andon sale real time tracking, observe condition and guide service and technical support, expert,engineer to assist, after sale we collect user feedback, improve and update our technology


News

  • May.23.2020 The History of the Lithium Ion Battery

    During the oil crisis in the 1970s, Stanley Whittingham, an English chemist working for Exxon mobile at the time, started exploring the idea of a new battery – one that could recharge on its own in a short amount of time and perhaps lead to fossil-free energy one day.In his first attempt, he tried using titanium disulfide and lithium metal as the electrodes, but the combination posed several challenges, including serious safety concerns. After the batteries short-circuited and caught on fire, Exxon decided to halt the experiment.However, John B. Goodenough, currently an engineering professor at the University of Texas at Austin, had another idea. In the 1980s, he experimented using lithium cobalt oxide as the cathode instead of titanium disulfide, which paid off: the battery doubled its energy potential.Five years later, Akira Yoshino of Meijo University in Nagoya, Japan, made another swap. Instead of using reactive lithium metal as anode, he tried using a carbonaceous material, petroleum coke, which led to a revolutionary finding: not only was the new battery significantly safer without lithium metal, the battery performance was more stable, thus producing the first prototype of the lithium-ion battery.

  • May.22.2020 The cycle time of the NCM lithium battery

    For the traditional battery, NCM lithium battery has the advantages of long life, energy saving, environmental protection and no pollution, low maintenance cost, complete charge and discharge, light weight and so onThe so-called lithium battery life refers to the battery in the use of a period of time, the capacity of the attenuation of the nominal capacity (room temperature 25℃, standard atmospheric pressure, and discharge at 0.2c of the battery capacity) of 70%, can be regarded as the end of life. Generally, the cycle life of lithium battery is calculated by the cycle times of full charge. In the process of use, irreversible electrochemical reactions will occur inside the lithium battery, resulting in the decrease of capacity, such as the decomposition of electrolyte, the inactivation of active materials, and the collapse of positive and negative electrode structure, resulting in the reduction of the number of lithium ions embedded and deembedded, etc. Experiments show that higher discharge rates lead to faster capacity decay. If the discharge current is lower, the battery voltage will approach the equilibrium voltage, releasing more energy.The theoretical life of ternary lithium battery is about 800 cycles, which is medium in the commercial rechargeable lithium battery. Lithium iron phosphate has about 2,000 cycles, while lithium titanate is said to have 10,000 cycles. Current mainstream battery manufacturers in their production of ternary cell specifications promise more than 500 times (under standard conditions), but after the cell is made into a battery pack, due to the consistency problem, the main voltage and internal resistance can not be exactly the same, its cycle life is about 400 times. The manufacturer recommends that the SOC use window be 10%~90%, and it is not recommended to conduct deep charging and discharging, otherwise it will cause irreversible damage to the positive and negative electrode structure of the battery. If it is calculated by shallow charging and shallow discharging, the cycle life will be at least 1000 times. In addition, the battery life of a lithium-ion battery can drop significantly to less than 200 times if the battery is frequently discharged at high magnification and high temperature.

  • May.21.2020 Design Considerations for Li Po Packs

    As mentioned above, puncturing a cell is a much larger risk for a Li-Po cell compared to one in a steel or aluminum can. An internal short circuit will cause the cell to get hot, and thermal runaway is the worst potential outcome. Even if assembly damage doesn’t short the cell, a leak may allow moisture into it. Moisture will eventually cause the cell to self-discharge and prematurely fail. Swelling may result from the reaction of the anode with moisture.With any Li-ion based chemistry, when the cell voltage drops too low (~1.5V), reactions at the anode produce gas. Over-discharge is an issue for all Li-ion cells, but the resultant gassing in Li-Po cells is more obvious—though also less dangerous. The cells will swell over time, but excess gas is released in a less violent manner than in a cylindrical or prismatic cell. Regardless of the chemistry type, the Battery Management System (BMS) embedded in the battery pack should be designed to prevent over discharge.Overcharge has similar effects on battery health. The discharge of gasses occurs at the cathode as the electrolyte starts to decompose at high cell voltage (~4.6V). Swelling helps to prevent further overcharge by increasing the cell impedance as a final safety measure, but an external thermal fuse (connected to the BMS) should be employed for overcharge protection, in addition to charge control by the charger.Given the increased possibility of puncture, over-heating, and swelling with Li-Po cells, it is always encouraged for UAV manufacturers to consider a plastic enclosure with enough extra volume to accommodate some level of swelling of the enclosed cells. This enclosure protects the cells from puncture, protects the operator from over-heated cells, and contains leaked electrolyte in the event of a cell rupture. However, many UAV manufacturers opt for a shrink-wrap packaging or a plastic exoskeleton frame to save on weight.