27

Lithium battery charging process, does long-term trickle charging affect lithium batteries?

锂电池充电过程，长时间涓流充电对锂电池有影响吗？锂电池使用日益广泛，使得锂电池充电方法备受关注。对于不同的锂电池，通常具备不同的锂电池充电方法，这也是大家无法短时间内全面掌握锂电池充电方法的原因。那么锂电池是怎么充电的呢？长时间涓流充电对锂电池有影响吗？下面小编带大家了解一下。 涓流充电是镍氢电池的说法，对锂电池同样适用，锂电池的充电过程可以分为四个阶段：涓流充电、恒流充电、恒压充电以及充电终止。恒压阶段就是所谓的涓流充电了，电量一般在80%左右，即可进入恒压模式，此时充电速度会开始变慢，直到将电池充满。 锂电池充电过程阶段1：涓流充电—涓流充电用来先对完全放电的电池单元进行预充，在电池电压低于3V左右时采用涓流充电，涓流充电电流是恒流充电电流的十分之一即0.1c。 阶段2：恒流充电—即充电电流恒定，就是我们常说的CC模式，恒流充电我们电流需要恒定，一般取充电电流在0.2C-1C之间，注意不要超过1.5C，否则对电池会有较大的损伤；这个过程中，锂电池的电压会不断上升，直达电池电压达到4.2V后进入恒压充电阶段。 阶段3：恒压充电—当电池电压上升到4.2V时，恒流充电结束开始恒压充电阶段，为使性能达到最佳，稳压容差应当优于+1%。 阶段4：充电终止—有两种典型的充电终止方法：采用最小充电电流判断或采用定时器，最小电流法监视恒压充电阶段的充电电流，并在充电电流减小到0.02C至0.07C范围时终止充电；第二种方法从恒压充电阶段开始时计时，持续充电两个小时后终止充电过程。 长时间涓流充电对锂电池有影响吗？锂电池经过快速充电和连续式充电两个阶段之后还需要进行涓流充电将剩余容量充满，涓流充电通常需要持续一段时间，三个阶段全部完成才能真正达到电量饱和的良好状态。目前充电器不能对锂电池的涓流充电过程进行控制，涓流充电的时间太长会有爆炸的危险，涓流充电的时间太短，锂电池容量没有充满而缩短锂电池的使用时间。 涓流充电是用来弥补电池在充满电后由于自放电而造成的容量损失，一般锂电池刚买进时要充电12小时，在充电器灯灭后的涓流充电时间不能断电。涓流充电能够把电池充得很足，而不伤害电池寿命，但用涓流充电所花的时间实在太长，因此很少单独使用，而是和其它充电方式结合使用。 许多电池制造商建议不要长期使用涓流充电。使用涓流充电，充电速率就会非常低并且有时断断续续。当给电池充电时，最好的智能充电器只能进行临时的充电速率变化，但没有连续的低速率充电功能，如果长期进行涓流充电只有十分之一的电池能量不会受到伤害。 以上就是锂电池充电过程介绍和长时间涓流充电对锂电池的影响。涓流充电最大的好处就是在充满手机前将充电速度降下来，有效的减少手机过充的发生，但是平时充电时，并非必须将手机充得越慢越好，而是以少吃多餐为宜，有时间就充，充好就接着用就行。文章来源：锂电池UPS

26

Ningde Times Yibin Power Battery Project Officially Starts Investment of 10 Billion

On December 26, it was learned from the relevant person in charge of Ningde Times that the power battery manufacturing base project of Ningde Times in Yibin City, Sichuan Province has officially started. According to the plan, Ningde era will invest 10 billion yuan to build a power battery production line with an annual production capacity of 30GWh. It is understood that the Ningde Times Yibin Power Battery Manufacturing Base project will be constructed in two phases. The first phase of the project will not exceed 26 months from the start of construction, and the second phase of the project is planned to start within two years after the first phase is put into operation; the total area of the project is about 1000 Mu, of which the first phase of the project covers an area of about 400 mu, and the second phase of the project covers an area of about 600 mu. This September, Ningde

25

How far is the power battery digital factory?

On the one hand, the rapid development of new energy vehicles and the accelerated reshuffle of the industry, on the other hand, power battery manufacturing is developing in the direction of high quality, high efficiency, information and visualization. In this industry background, digital intelligence has become an important weapon for power battery related enterprises to enhance their competitiveness. At the same time, with the development of intelligent manufacturing, the process of power battery digital factory is one of the most concerned propositions of the lithium battery industry. At the just-concluded 2019 high-tech lithium battery-electric vehicle annual meeting, OiyamaKiyokazu, senior vice president of tianpeng power supply, dr du yixian, president of liyuanheng research institute, and radium Yu technology

06

8 Dimensions Interpretation of Chery New Energy Power Battery Selection

In early December, Chery Automobile's mixed reform was completed, 14.45 billion a new controlling shareholder, Qingdao Wudaokou, to introduce strategic funds for electrification. From January to November this year, Chery Ant eQ1 sold a total of 33891 vehicles, ranking first among A00 pure electric vehicles. Chery New Energy currently has models such as Ruihu E, Xiaoant, Erez E, Ruihu 3xe and eQ on sale, and plans to accelerate the launch of products in 2020, cover all market segments, and deepen diversified channel layout and business models to promote sales growth. At the just-concluded Li yuanheng 2019 high-level lithium battery-electric vehicle annual meeting, Chery new energy

08

Double planetary power mixer

Qinhuangdao Yushun Intelligent Technology Co., Ltd.

18

In 2019, the demand for lithium batteries for light vehicles will reach 4515MWh

Lithium-electric light vehicles are divided into types, mainly electric bicycles, electric motorcycles, mopeds, and E-bike. Except for electric bicycles, electric motorcycles, and mopeds in South Asia and China, the European market and the North American market As well as the Japanese and Korean markets, E-bike mopeds are the main lithium-electric light vehicles. In addition, lithium-electric scooters are beginning to prevail in the European market. According to data from the Institute of Lithium Electricity (GGII), China's light vehicle lithium battery shipments reached 2835MWh in 2018, an increase of 57.4 year-on-year. Estimated lithium by 2019

10

Analysis and Latest Research on Preparation Technology of Lithium Battery Ternary Materials

Basic knowledge and current situation of 1. ternary materials Common lithium ion cathode materials are generally embedded compounds. Including: layered structure of lithium cobalt oxide, spinel structure of lithium manganese oxide and olivine structure of lithium iron phosphate. The development of a cathode material system with high redox potential and output voltage, high reversible charge-discharge specific capacity, good electronic and ionic conductivity, and good cycle stability is an important research content in the field of lithium-ion batteries. The ternary nickel cobalt manganese material generally refers to the lithium nickel cobalt manganese oxide LiNi1-x-yCoxMnyO2. The material has a ternary synergistic effect, and its electrochemical performance is better than any single.

30

Celebration of the National Day, pay tribute to the motherland

Qinhuangdao Yushun Intelligent Technology Co., Ltd.

27

Yushun Intelligent Amazing Adhesive Exhibition, praised by domestic and foreign customers

The 3-day adhesive exhibition has come to a successful conclusion. Yushun Intelligent Booth has welcomed many industry colleagues to visit, guide and consult. Countless wonderful moments are worthy of our aftertaste. During the exhibition, the small partners arrived at the scene early and made preparations to ensure the best service for customers. Our star product "Double Planet Power Mixer" has attracted many domestic and foreign customers. Sales engineers patiently explain the products to customers, and customers express high recognition. It is also this group of enthusiastic and hardworking partners who have built a bridge between Yushun Intelligence and customers, sincerely answering questions and listening to customers.

28

300L Double Planetary Power Mixer Enters Lithium Battery Enterprises

Compared with traditional batteries, lithium batteries have the advantages of high energy density, high working voltage, light weight, small size, small self-discharge, no memory effect, long cycle life, and fast charging. At the same time, because they do not contain heavy metals such as lead and cadmium, they are pollution-free, No toxic materials, so it is widely used in consumer electronic products such as smart phones, notebooks, tablet computers, as well as new energy vehicles, energy storage fields, etc. Coupled with the strong support of the policy, the domestic lithium battery market space continues to expand. In order to meet the growing market demand for lithium batteries, increase production capacity and expand production lines, customers ordered 4 300L double planetary power mixers and