Color Cotton: Electric vehicle batteries and Japan and South Korea in the technology

Electric vehicle batteries and Japan and South Korea in the technology

Electric car craze in full swing, and it seems not at all since the end of the Detroit auto show has been cool! Including electric vehicles, rechargeable batteries used in electric vehicles is the development of key technologies. For this reason, some Japanese auto manufacturers have strong traditional battery technology vendors or cooperation or equity, for example, with the old partner Panasonic Toyota, Nissan and NEC to develop such a strategic vehicle, said rechargeable battery or secondary battery. So, the major automobile manufacturers in the world regard the development of electric vehicles as the company's current strategy for the future development of the global pattern of vehicle battery technology is how it? How will it affect the future of the territory of the global automotive industry changes? BYD, which we are most concerned about iron battery technology also is in a kind of place? Let's take a look at electric vehicles, a senior industry analyst HUNTET HSU's subtlety in-depth analysis and presentation.

Geneva Motor Show starting this year, most of the Opel Ampera Volt concept car technology by

E is the prospect of electric vehicles Motor Trend

GE Group in 2008 to celebrate the moment by a century plant, officially launched the production version of the Chevrolet Volt electric car to open the new era. With the deepening environmental awareness of consumers, are both common Group's German brand Opel also announced at the 2009 Geneva Motor Show, launch the "Ampera" the new electric cars. Four by five set Ampera, with the Chevrolet Volt in fact a considerable degree of similarity: in addition to narrow lines, swept headlamps similar foreign, Ampera narrow range of grille uses the same time, also joined the lower edge of headlight similar to the Flextreme concept car with the factory air intake grid design, showing a dynamic avant-garde design. Dynamic aspects, Ampera General Group Voltec carrying power system, the owner may be charged by 230V AC power, lithium battery module in the case of full power, Ampera life can provide the distance of 60 km; and wish to drive further along the path, Ampera are equipped with a small internal combustion engine, also continued to produce electricity, to provide more long-distance endurance.

As concerns the first group on the capital market electric vehicle industry one of the researchers, I have the opportunity to use the last technology of electric cars have done a preliminary analysis of the bottleneck. This time I will introduce electric cars key core components: car charger (secondary) batteries! The vehicle the rapid development of electronic applications, cars are no longer the traditional mechanical products, but has all the modern technology in an intelligent, integrated optoelectronics, semiconductors, electronics, communications, integrated technology platform. 2004, every new car in electronic products for the $ 1,518 expenditure, but also some estimate as mechatronics technology continues to progress, the future cost of electronic products is expected to reach 40% of the cost of vehicles.

The vehicle the rapid development of electronic applications, cars are no longer the traditional mechanical products, but has all the modern technology in an intelligent, integrated optoelectronics, semiconductors, electronics, communications, technology integration platform

Corresponds to the trend of the vehicle a high degree of electronic, automotive industry, 42V or 42V/14V power system to promote the strength is gradually accelerated. Automotive electronic systems demand for electricity from now to 2030 will maintain an annual rate of 5 to 8% growth in the transition phase 42V/14V power system is expected to become the new generation vehicle power system standards. Electronic products is currently a senior foreign cars need to harness more than 2000, various control devices of the connection points over 4000, harnesses the total length of more than 4,000 meters, the weight is greater than 40 kg. After the next switch to 42V power system, the existing mainstream wire cross-sectional area decreased by a 0.5 ~ 1.5mm to 0.35mm. Enhance the benefits of the car voltage in: (1) the same power, the current flowing through the wire is smaller, reducing the loss of each wire ohms, thus reducing fuel consumption could be 10 to 20%; (2) lead out of savings space can add a new electronic system function; (3) using aluminum instead of copper wire, size can be more narrow; (4) meet the needs of the development of hybrid vehicles. With the era of vehicles 42V power systems, electric energy storage media / battery demand will also be further enhanced.

Decisive Force in Korea in electric vehicle technology temporarily lead the world

In 2006 the global battery market (excluding the low zinc-manganese batteries) is 540 billion dollars, the next 4 years will be an annual compound growth rate of 6.9% increased steadily. The battery from the past use of flashlights, radios, cars and motorcycles start the power to today's 40-50 kinds of uses, can be said that human society is essential to energy sources. Demand for car batteries battery market accounted for more than one third of total demand (34.2%, as shown in Figure), the annual growth rate of 2.1% more from the current (2007) rose to 9.2% (2010). Hybrid vehicles are seen as key components of next-generation lithium-ion battery (growth of 81%) and super capacitor (120% growth) is expected in the next 5 years to achieve rapid growth.

Since 1800 Alessandro Volta invented the world's first battery, 1859 Gaston Plante invented rechargeable lead-acid batteries, engineers did not stop the efforts to find a better way of energy storage. Chemical batteries or rechargeable batteries based on the characteristics, is divided into "a cell" and "secondary battery" two broad categories. An alkaline battery includes the common market, batteries, mercury batteries, and manganese batteries, silver oxide batteries, lithium batteries and air batteries, rechargeable batteries, compared with the current large portable electronic product applications, including lead-acid batteries, nickel cadmium batteries, nickel metal hydride batteries and lithium-ion batteries, lithium polymer batteries and super capacitors. Advent of lithium-ion battery in 1990 and completed in 1991 and commercially, the use of gel polymer electrolyte membrane and polymer electrolyte lithium-ion batteries were introduced in 1995 and commercialized in 1999. But lithium-ion battery package there is always the safety concerns.

Hybrid vehicles are seen as key components of next-generation lithium-ion battery (growth of 81%) and super capacitor (120% growth) is expected in the next 5 years to achieve high growth

To explore future trends in automotive batteries, starting from two directions: with charge and discharge of the functions of secondary batteries and electrochemical battery powered, the former mainstream as the lead-acid batteries in the past, but due to the secondary battery hybrid a substantial increase in performance requirements. Ni-MH (nickel-metal hydride batteries) as compared with excellent cost performance and security (relative to the lithium-ion battery) and has high energy density, power density, fast charge and discharge, long life and the loop no memory effect, no pollution, can be maintenance-free, with full features, known as the "green battery." Ni-MH battery energy density of nickel-cadmium battery is 1.5 to 2 times, no memory effect when charging and discharging, low temperature characteristics, and overall performance is better than nickel-cadmium batteries, nickel-cadmium batteries nor deal with the problem of waste batteries. Most hybrids currently on the market are selected nickel-hydrogen batteries as a storage medium for energy recovery. If the lithium battery costs and the future meet the vehicle safety performance requirements, and gradually replace the trend of several Ni-MH battery can be determined.

Many people in the industry can not wait to be able to study the dismantling BYD F3DM

The world's lithium-ion / Li-polymer battery market makers mainly in Asia, Japan, Korea, China and Taiwan manufacturers market pie eating, which grasp the technological superiority of Japanese manufacturers occupy the market share of 80-90% , dominance firms. Japanese manufacturers to develop lithium-ion / Li-polymer of the oldest and the stability of technology and quality are in a leading position in the industry, technology copied from Japan, South Korean companies Samsung is because behind, LG and other manufacturers support some good results. Mainly by the internal lithium-ion battery cathode, anode, electrolyte and membrane composition, because of the positive and negative electrode and electrolyte materials, different different names. Currently on the market lithium-ion battery cathode material of lithium cobalt oxide is mainly (LiCoO2), plus a few use lithium manganese oxide (LiMn2O4) and lithium nickel oxide (LiNiO2) as cathode materials for lithium-ion battery, the two have been in handheld electronic products, very popular.

So far, not been able to iron a large-scale commercialization of lithium batteries

Lithium-ion battery cathode materials prices and market prices of raw materials, the same metal, in which cobalt (Co) is most scarce, nickel (Ni), manganese (Mn) is less expensive, but the prices have sharply reduced the cost of restricting electric vehicles to achieve universal possibilities. The most promising is based on lithium iron phosphate (LiFePO4) battery cathode material for lithium-ion batteries, because iron ore prices are much lower than other metals. Lithium iron phosphate lithium battery life is 4-5 times normal, there are 8-10 times higher than the lithium batteries of high discharge power (which can produce large instantaneous current), together with the same energy density lithium batteries to reduce the overall weight than the 30-50%, and other features, it is considered the most suitable electric vehicles require large torque used by the secondary battery technology. It is said Warren Warren Buffett the world (Warren Buffett) and spotted BYD shares of the important reasons the depot, but the technical team on the BYD have the "iron battery" technology content, the industry is still and investment circles caused huge controversy, the answers I'm afraid to wait until F3DM mass production only when consumers know little about, in the future I will be behind the complex patent disputes this special author's note.

Lithium iron behind the back of the complex patent disputes has

Is lithium-ion batteries in addition to any other electric vehicle battery technology to meet the needs of the market? The answer is no, including the depot pour a lot of Honda fuel cell R & D resources, and BMW has tested a "super capacitor" technology are feasible options, the latter with the FIA F1 track is the kinetic energy within a vigorously promote recovery system (Kinetic Energy Recovery Systems, referred to as KERS) is closely related to the future I will also detail the author.