11

2020

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05

Does the battery need an activation code?

Author:



The answer is that the battery needs to be activated, but that's not what the user has to do. The author has visited a lithium-ion battery production plant. Before leaving the factory, lithium-ion batteries must go through the following processes: the lithium-ion battery case is infused with electrolyte - sealed - formed, which is constant voltage charging and then discharging. This is done for several cycles. The electrodes are fully soaked in the electrolyte and fully activated until the capacity reaches the requirement. This is the activation process - capacity division, which is to test the capacity of the battery, select batteries with different performance (capacity) for classification, classify the battery levels, and perform capacity matching, etc. .The lithium-ion battery produced in this way is already activated in the hands of the user.

The nickel-cadmium batteries and nickel-metal hydride batteries commonly used by us are also formed and activated before leaving the factory. The activation process of some batteries requires the battery to be in an open state, and then sealed after activation. This process can only be completed by the battery cell manufacturer.

There is a problem here, that is, it sometimes takes a long time for the batteries shipped from the battery factory to reach the user, ranging from one month to half a year. At this time, the battery electrode material will be passivated, so the manufacturer recommends first-time use. It is best to complete the battery charging and discharging process 3-5 times in order to eliminate the passivation of the electrode material and reach the maximum capacity.

In the three national standards for nickel-metal hydride, nickel-cadmium and lithium-ion batteries promulgated in 2001, the detection of their initial capacity is clearly stipulated. The battery can be deeply charged and discharged 5 times. When one of them meets the regulations, the test to stop. This explains the phenomenon I'm talking about very well.

Then it is also possible to call it "second activation". The "new" battery used by the user for the first time should be subjected to several deep charge and discharge cycles as much as possible.

However, according to the author's tests (for lithium-ion batteries), for lithium-ion batteries with a storage period of 1-3 months, there is almost no increase in capacity if they are subjected to deep charge and deep discharge cycles.

21

2020-04

Certifications

Our company has an excellent marketing team, scientific operating mechanism, complete internal management procedures and strict rules and regulations. Now we have advanced production equipment, exquisite production technology, strong technical force, perfect quality assurance system and pre-sales and after-sales service system.

21

2020-04

R&D strength

A high-tech enterprise focusing on the integration of new energy product R&D, manufacturing, brand promotion and operations, always keeping pace with the world's leading technology and management. Now it has developed more than 10 series of more than 100 well-known brand products such as lithium-ion battery packs, 18650 lithium batteries, nickel-metal hydride batteries, alkaline batteries, polymer lithium batteries and mobile power supplies. The company's products have excellent performance and good consistency. They are not only in a leading position in the country, but also reach the world's leading level.

21

2020-04

The lithium battery industry can still expect high growth in the next few years

Li Zhenqiang, CEO of Qidian Research, said at the meeting that from the perspective of China’s lithium battery competition landscape, industry concentration is far lower than abroad. In 2015, the global market concentration rate of the top 10 Chinese lithium batteries was 44.4%, and only one of the top 10 companies was not involved in power batteries. Li Zhenqiang predicts that China's lithium-ion battery market will reach 96.11GWH by 2018, with a compound growth rate of 25% in the next three years, EVs will maintain a compound growth rate of more than 40%, and the ESS market is expected to explode in 2018.

21

2020-04

Decoding the pros and cons of overseas Taobao for Chinese lithium battery companies

In 2017, Wanxiang A123 won a new order from SAIC General Motors worth over US$1 billion for its owner, involving 2.6 million sets of 48-volt super lithium iron phosphate batteries.

21

2020-04

Where is the energy storage battery?

For all intents and purposes, Aquin Energy seems destined to succeed. The emerging startup, which sells high-capacity energy storage batteries to renewable energy projects and grids, was founded in 2007 by Jay Whitacre, a materials science professor at Carnegie Mellon University. , once developed batteries for NASA’s Mars rover. Aquin Energy has raised nearly $200 million from high-profile investors including venture capitalists including Bill Gates, Kleiner Perkins and Shell. Perhaps most importantly, when the company first entered the market, it was clearly and keenly aware of the biggest problem of previous battery project startups-it was difficult to avoid the use of rare materials. With lessons learned from the past, Aquin Energy relied more on production equipment that had changed its original purpose and determined the possible market profit direction.

21

2020-04

More than 5 power battery companies are involved in upstream lithium mines

On the demand side, according to data from the China Geological Survey, the annual production of 2 million new energy vehicles will be achieved by 2020, and the consumption of lithium products will reach 80,000 to 100,000 tons of lithium carbonate equivalent, exceeding the national lithium product consumption in 2015. Under the premise that demand in other fields remains unchanged, the development of the new energy vehicle industry will lead to an average annual demand growth rate of 10% to 15%. It is expected that lithium demand will reach 150,000 tons of lithium carbonate equivalent in 2020.

11

2020-05

Warmly celebrate our company's successful passing of ISO9001 quality management system certification

Warmly celebrate our company's successful passing of ISO9001 quality management system certification

11

2020-05

Super battery/graphene battery is not the best yet. Take stock of 12 new battery technologies

A battery is a device that converts energy produced by chemical reactions directly into electrical energy. It has the characteristics of stable voltage, stable current, stable power supply for a long time, little influence from the outside world, simple structure, easy to carry, simple and easy charging and discharging operations, stable and reliable performance, and brings a lot of convenience to modern social life.