Analysis of the key application market of Chinese dynamic lithium ion battery

The first section: Fuel oil automobile and motorcycle

The future of China's market power battery market value is about 300 billion yuan. The battery in the electric bicycles, tricycles, agriculture is about 80 billion yuan; without considering the bus configuration, car power battery is about 75 billion.

Electric cars in the second quarter

A, lithium ion battery electric cars in China in the field of application

Lithium battery industry is the important direction of the high and new technology development around the world. Lithium ion battery has a specific energy, specific power, high conversion rate, the advantages of long life, no pollution, is the future development direction of power battery. Application in the field of power lithium-ion batteries in electric cars, not only can replace oil with electricity, reduce greenhouse gas emissions, also can store electricity grid valley. With lithium battery car gradually toward the market, the world of lithium resource use and consumption will increase sharply, leading to the industrial chain of great potential and broad prospects for development.

Second, the other battery electric cars in China in the field of application

Lead-acid batteries or can be applied to electric cars

Add code generator can be converted to electricity, the oil from the oil tank within regular range powered by battery, fuel consumption zero emissions, rather than the current mileage use a program generator, fuel efficient than the traditional fuel machines half, annual average oil-saving rate was 90%.At the same time, lifting the user long drive worry, car battery can be greatly reduced. This means less energy consumption and lower battery purchase and use cost. At the same time, it also does not need to rely on high power charging stations.

So if the backing to increase program generator, car battery energy can reduce according to actual situation, the travel distance every day in the 60 km below the user can use the lead-acid battery of cheap and safe.

3, national 863 plan for development of electric vehicles with power battery research

In the torch high and new subsidiary of torch, Lai is a development and production of nickel metal hydride battery series of new and high technology and mobile communication power supply and accessories professional company, with complete nickel cadmium, nickel metal hydride battery production and testing equipment, annual output of various types of 20 million Ah battery. At present, the hybrid electric vehicle battery power than the 700-800 - w/kg, pure electric vehicle battery than energy reached 60 ~ 65 KWH/kg, in the domestic leading level, has been widely used in electric cars, electric motorcycles, and other products. In addition, it is important to focus on that the company always adhere to the path of combining study, has made brilliant achievements in the field of power battery. Companies to participate in a number of national "863" plan project, won three national patents, 10 a number of invention and utility model patents, there are more than 10 projects through the national ministry of science and technology acceptance. Torch, Lai company in north China university of technology and the national high technology development of green materials center and other two colleges and academy, key research "QNYD6 hybrid vehicle Ni-Mh power battery" project, the main research development of hybrid electric vehicle power Ni-Mh batteries, technology will provide power for Changan automobile company hybrid solution.

In the third quarter electric motorcycle field

Electric locomotive and the electric car market, expected in the next few years will be rapid growth, but sales of new energy vehicles, may be less than 100000 by 2016.

By 2016, in 57% of the 32 million sets of electric locomotive made in China can use lithium ion battery, the proportion of only 3% in 2011.

The fourth quarter, electric bicycle field

A, the condition of the development of China's electric bicycle industry

At present, the electric bicycle has about 140 million cars.

As international bicycle production and marketing power, China's bicycle production and exports are first in the world, exports have accounted for more than 60% of the world. Statistics show that 2011, 55.722 million vehicles, bicycle exports fell 4.2% year on year. Electric bicycle exports 607000 vehicles, up 3.8% from a year earlier.

Chinese bicycles, electric bicycle industry development turning point has appeared, low growth will gradually become the norm, industry in the channel of fall pregnant with endogenous motivation and transformation of consensus.

Although production slide, product sales and product added value is increasing, product price rises ceaselessly, bicycle products structure is changing in China. In 2011 China bicycle sales, profits of 94.22 billion yuan and 4.24 billion yuan respectively, compared with 2007, when growth was 43.7% and 43.7% respectively.

"Twelfth five-year" period, China bicycle, electric bike the industry gross value of industrial output grew by an average of 6%, to 2015 reached 100 billion yuan, bicycle and parts basically stable export scale, the electric bicycle exports increased significantly.

Second, the lithium ion battery application in the field of electric bicycle

Electric bicycle with lithium batteries can be roughly divided into three broad categories: manganese acid lithium battery, batteries ternary material and lithium iron phosphate batteries。

Manganese acid lithium battery: solve the high temperature performance of manganese acid lithium battery, battery cathode material, the battery must be modified structure design and the electrolyte formula. In Japan and South Korea USES the modified lithium manganese acid, modified manganese acid lithium battery, one week after the 65 ℃ storage capacity only dropped to 99%.

Ternary material battery: cobalt, nickel and manganese ternary material as the anode material of lithium battery, it overcomes the defects about the worse performance of high temperature of manganese acid lithium, and improves the specific energy of the battery.

Lithium iron phosphate battery: since 2002, the United States and Canada started developing lithium iron phosphate batteries, it become a new kind of great development prospect of power type lithium ion batteries. Long life, charge and discharge cycle 1 c at room temperature up to 2000 times.

Lithium iron phosphate batteries advantages: high safety. Stronger binding force, structure of phosphoric acid root chemical stability is good; Environmental protection and does not contain any heavy metals; Non-toxic (through the SGS certification), no pollution; Fast charging, lithium iron phosphate batteries can be large current 5 ~ 10 c fast charge and discharge; Large current discharge performance is good; Can be 10 ~ 50 c large current high power discharge.

Lithium iron phosphate battery disadvantages: low temperature performance is inferior to manganese acid lithium and other positive electrode material. Lithium iron phosphate monomer battery voltage is 3.2 V.36 v battery pack need 12 single cells in series. Monomer lithium iron phosphate battery life is more than 2000 times, but the life of the battery pack may only 500 times.

At present in the application of high-power electric bicycle lithium ion power battery. Basically all is by more than single cells in series and in parallel. In the process of its application, the problems existing in the lithium power battery is mainly between each monomer battery large discreteness, thus affect the entire safety and service life of the battery pack.

Therefore, we should think the ideal lithium power battery management for safety and service life of the battery pack. The control requirement is: not only to manage and protect each of monomer battery, the battery pack and at the time of discharge also keep each battery voltage balance is consistent, like many glasses of water in the same horizontal line balance out consistently. In charge to ensure that all the batteries in the battery pack in the same voltage line balancing consistently recharged, until all the battery, as many a cup, although is not the same as the capacity, but at the same flow injection, to ensure that each cup water.

To sum up, the electric bicycle with lithium batteries in use process, to keep the battery but admit, however, no fever, long service life, especially the use of security. This requires the battery pack must have a battery charge and discharge of each monomer equilibrium and protection function.

Third, other applications in the field of electric bicycle battery

Communication batteries, communication is one of the main market of valve-control sealed lead-acid battery, it is mainly used for backup power supply for communication base station and center room and replacement cycle for 3 ~ 5 years, the total purchasing amount accounted for about 2% ~ 3% of telecommunications investment in fixed assets. Currently valve-control sealed lead-acid battery market share of 90% or more in the field of communications. The rapid development of communication industry led to the rapid growth of valve-control sealed battery market demand. In addition, communications back-up power market scale growth will bring the huge market space lead-acid battery industry.

Power battery, lead acid storage battery as a power battery is mainly used in the field of electric bicycles, electric bicycle production to 29.54 million vehicles in China in 2010, year-on-year growth of 24.69% significantly. In the market of electric bicycle power battery is as high as 90% with lead-acid battery, nickel metal hydride battery only 8%, only 2% of lithium ion and other battery.

Electric bicycle power battery service life about battery chargers for 1 ~ 2 years, every year is not only the truck market demand for lead-acid battery, greater demand lies in the change of the market. At present, the electric bicycle has nearly 170 million cars, the annual demand for battery replacement will reach 100 million units in the field of new energy vehicles, another large lead-acid storage battery as a power battery application field, mainly concentrated in hybrid electric vehicles and low-speed electric car market.

In the field of energy storage battery, the global main energy storage technology is divided into three categories: physical energy storage, such as pumped storage, compressed air energy storage, flywheel energy storage, etc.; Chemical energy storage, such as sodium sulfur batteries, flow batteries, lead-acid batteries, lithium ion battery, etc.; Electromagnetic energy storage, such as superconducting energy storage, capacitor energy storage, etc. The report predicted that the world's energy storage power station the size of the market will increase from $2010 in 1.5 billion to $2020 in 35.3 billion, a huge market space. In the new energy power generation and smart grid construction, against the background of energy storage polymer battery factory plant large-scale commercial applications will greatly speed up, which will bring lead-acid battery as energy storage battery application a certain market space.

Section 5 power tool industry

The development condition, China electric tools market

Electric tools are divided into metal cutting electric power tools, grinding tools, assembly power tools and railway use power tools. Common electrical construction with electric drills, electric grinder, electric wrench and electric screwdriver, electric hammer and impact drill, concrete vibrator, planer. Because our country electric tool industry obtained the acceleration of a new round of development, the strong demand for electric tool cutting, led to the rapid industrial development tools.

Electric tool industry actively introduce technology to improve its strength of China's fast development, the comprehensive nature of the foreign exchange, the electric tool industry, also in fast development in recent years, but compared to the level of foreign related enterprises still lag behind. Professionals in the fai thinks, want to let the electric tool industry rapid development, technology is very important. Combined with the particularity of the electric tool industry, belongs to the high technology content industry, enterprises must actively introduce related technology, boost their strength. Electric tool industry belongs to the advanced equipment manufacturing industry, and improve services in the advanced manufacturing industry. Electric tools are widely used inspecial, high-speed rail construction, shipbuilding, automobile industry, and other areas of the advanced equipment manufacturing and building roads, building decoration, wood processing, metal processing, and other areas of the production.

The global power tool industry, according to the characteristics of product technical requirements, application field, can be divided into industrial grade, professional and DIY home three levels. Among them, industrial electric tools products are mainly used for precision process or operation in the workplaces where high environmental protection requirements, such asspecial field, with high technical requirements, the characteristics of high profits, market scope; DIY home and electric tools is mainly applied to precision request is not high and sustained operation time is not long, such as home repair, simple decoration, etc., has the characteristics of low technology content, low profits. Currently the vast majority of electric tools production enterprises in China are in the production of DIY household electric tools products, product sales mainly in prices of means of competition, the overall presents a state of low-end, disorderly competition. And professional power tools no matter in the field of technology, application scope, or in product gross margin, value-added products are far above level DIY products. Professional power tools power, high speed and long life of the motor itself, can be sustained for a long time repeated operation, with high technical content, high profit margins and market a wide range, high industry threshold, high brand value, etc. China's domestic electric tools market for Germany Bosch, Japan grazing fields all the year round, Japan Hitachi, the United States have to wei and other foreign brand giant grip. Luo hui pointed out that, from the trend in recent years, the foreign brand in the domestic market share in the down channel, Richard electric tool rise constantly expanding market share, replace the imported brand. In the domestic market share in the top four, Richard shares is one of the most young rising star, but it is the fastest growing a rookie, from the factory production in just seven years, has made the market first four, have to catch up with hundred years history of Germany Bosch, Japan grazing the trend of the field.

Throughout the domestic current situation of the electric tool industry, production level DIY home electric tools products to occupy the vast majority, can form the product series of professional products factory is rare, industry concentration degree is low, the lack of leading enterprises. From the point of development trend, domestic brand will experience between industry reshuffle, eventually formed by a handful of leading enterprise and over the host and regulate orderly situation; Between domestic and foreign brand, market share will redistribute, domestic brand continuously replace foreign brands. The internal integration requirements of the industry, will by industry leader of Qing. Predictably, Richard, as the only a listed company specializing in electric tools, have the opportunity to also have the ability to stand on the stage of the capital market, promote the resources of the Chinese electric tool industry restructuring and reorganization.

Product structure to improve, need to strengthen comprehensive service ability as mentioned above, electric tool market situation is very good, but the problem is that domestic electric tools structure is not perfect, the domestic electric tools, most of conventional high-speed electric tools and average standard of cemented carbide tools. To consolidate has occupied market, and further cultivate and exploit new markets, electric tool enterprises should further improve product quality, to accelerate the development of new products. In particular, the key to speed up the battery type electric tools and the development of the electronic control electric tools constantly improve the level of electric tool and the quality of the product.

Second, the lithium ion battery application in the field of electric tools

1 power tools with the main characteristics of lithium ion batteries

At present, electric tool is given priority to with cylindrical lithium ion batteries with lithium ion batteries, generally use a combination of (figure 1).Monomer battery mainly has 14500, 18650, 22430, 22650, 26650, etc. Electric tools during normal use current is bigger, also often encounter when using blocking drill, sticking and other abnormal situation, when the current is bigger, so the electric tools with lithium ion batteries and battery requirements, battery requirements in addition to the high rate discharge performance continuously, also must have a higher ratio of pulse discharge performance.

1.1 high power

Electric tools used in lithium ion batteries are generally requires high power characteristics. Small electric tools (such as a screwdriver, etc.) can be used in single, about 5 c ratio in the battery discharge requirements. Use requirement of monomer battery discharge gun drill around 10 c ratio, as well as 20 c continuous discharge, 30 c pulse discharge.

1.2 long life

Usually require monomer battery charging with 1 c, 10 c discharge loop 300 times, capacity to keep more than 80% of the initial capacity. At present, some lithium ion battery can do 10 c discharge loop 500 times, capacity to keep more than 80% of the initial capacity.

1.3 high safety

Battery can pass the needle, extrusion, heavy impact, such as safety performance test project, test battery should be no fire, no explosion.

And at the same time through a battery charge and discharge, short circuit, high temperature, temperature shock, low pressure, safety performance test project. Test battery should be no fire, no explosion.

1.4 consistency requirements

Electric tools with lithium ion batteries are generally after series parallel combination. In order to prolong the service life and improve the safety and reliability, which requires the battery pack of each monomer battery has the high consistency between. Consistency not only requires the use of battery pack in the early performance consistency between single cells, and it is best to ensure consistency of the whole service life cycle performance. At present, 18650 batteries, for example, using general requirements in power tools battery capacity deviation early 20 or less mAh, voltage difference or less 10 mv, internal resistance is poor Ω 1 m or less.

2 in the electric tools used in lithium ion battery type

Currently in power tools used in lithium ion battery according to the positive electrode material system can be mainly divided into nickel cobalt manganese acid lithium ternary material, lithium iron phosphate, lithium manganese acid three categories. According to our test results, three battery has the following advantages and disadvantages.

2.1 nickel cobalt manganese acid lithium batteries ternary material

Advantages: high specific capacity, nickel cobalt manganese acid lithium materials can reach more than 145 mAh: can do 1300 mAh capacity above 18650 type battery, the battery cycle performance is good, 10 c discharge cycle can reach more than 500 times; High and low temperature performance is superior; Pole piece compaction density is high, can reach more than 3.4 g/cm3.

Disadvantages: low voltage platform, 1 c discharge voltage of 3.66 V, 10 c discharge platform at around 3.45 V. Battery safety performance relative nearly; The high cost.

2.2 lithium iron phosphate batteries

Advantages: good security is now the most safe power tools in the lithium ion battery of battery, battery high temperature performance is superior, the good cycle performance, small self-discharge, friendly to environment.

Disadvantages: low voltage platform, 1 c discharge voltage of 3.25 V, 10 c discharge platform at around 3.0 V. Pole piece compaction density is low, only about 2.25 g/cm3,Battery capacity is low, in 18650, power battery, for example, only about 1100 mAh capacity.

2.3 manganese acid lithium battery

Advantages: security is slightly better than nickel cobalt manganese acid lithium ternary material; High voltage platform, 1 c discharge voltage of 3.80 V, 10 c discharge platform at around 3.5 V; Battery superior performance at low temperature; Friendly to the environment; The cost is low.

Weakness: the battery high temperature cycle performance is poor; Sheet material compaction density less than three yuan, only about 3.0 g/cm3,Given a low manganese acid lithium usually only around 105 mah/g; Cycle performance worse than ternary material.

Rigorous scientific research methods ensure the accuracy of the research report and quality. The 2010-2013 China power lithium ion battery market dynamics and investment risk early warning analysis report mainly adopts the research methods are: 1) census: we nearly hundreds of power lithium ion industry practitioners for interview or telephone access, get the best data.2) tracking research: real time control of the power lithium industry dynamics, to ensure that we in the industry power lithium ions track mechanism is established, by visiting every month get power lithium-ion industry development.3) government agency data: we query the power lithium-ion industry key enterprises file statistics, file for industry and commerce, customs import and export data, etc., for more authoritative information.4) SOWT analysis: the SWOT analysis and porter five analysis method, we analyzed the power lithium-ion industry and enterprise's competitive advantages and disadvantages and potential threats and opportunities.5) scientific prediction: we use regression analysis, time series analysis, factor analysis, portfolio analysis methods such as the development trend of power lithium ion made the prediction.

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