The logic of selecting lithium manganate battery is discussed

When it comes to power batteries, there is no doubt that ternary batteries are popular. lithium iron phosphate is less impressive. As for the lithium manganate battery, it seems to have been on the paleontology, to talk about a bit out.

However, one of China's most established power battery enterprises, established in 2003, star constant power supply, still adhere to the lithium manganate as the core, manganese series of multiple composite lithium power battery technology line. And they did a good job --

In 2017, about 700 million watt-hours of new energy vehicle power batteries were shipped by hengxing power. Revenue of 1.436 billion yuan, net profit of 202 million yuan.

"" the manganese series battery is one of the most suitable choices in the future electric vehicle field. "We are determined to become a leader in the segment of commercial vehicles, especially logistics vehicles," said feng, chairman of xingheng power.

He also specifically added that the so-called tap, must be "really run in the street of electric logistics vehicle" matching the most.

Listen to him adhere to the manganese series power battery logic, observe the market demand for manganese series power battery, perhaps, we must re-recognize the manganese series power battery.

What is the world's best-selling electric car by far?

It is the Nissan Leaf, which has sold more than 320,000 units since its launch in 2010.

What kind of battery does the leaf use?

Lithium manganate battery.

Not only is Nissan leaf supplier AESC, gm Volt and Renault ZOE supplier LG chem also use lithium manganate batteries. In addition, Toshiba, Hitachi and LEJ also adopted the technology route of lithium manganate. In the power battery technology line in Japan and South Korea, although the ternary is an important branch, lithium manganate is also.

However, in China, lithium manganate battery has not become the mainstream, with only 4.25% of the total market share in the new energy vehicle market in 2017. Mainly used in passenger cars, logistics vehicles, in the field of passenger cars also slightly matching.

However, xingheng power is unique among ternary batteries and lithium iron phosphate batteries. With its manganese series multi-element composite lithium power battery products, it will support nearly 17,000 new energy vehicles in 2017, with a total power of about 700 million watt-hours. The main customers include Chongqing ruichi, Dongfeng motor, Chongqing Changan and other special car enterprises, but also include Dongfeng, Changan, cheery and other passenger car enterprises. The total market share of special vehicles ranks top five.

Choose the logic of lithium manganate batteries

When ev observer went to Suzhou Xingheng in early may, it couldn't wait to find out why it chose lithium manganate.

"Must ask in the end three yuan, manganese acid lithium, iron lithium which technical route is good?" Feng said. "These kinds of materials are not superior or inferior, each has its own merits."

"If you talk about safety, the best is lithium iron, followed by lithium manganese, and the worst is ternary;

If you talk about specific energy, the best ternary, followed by manganese lithium, the worst is iron lithium;

If you ask about cycle life, the best is lithium iron, followed by three, the worst is lithium manganese;

In terms of cost, the best is lithium manganese, the middle is lithium iron, the worst is three yuan;

If you ask the temperature range, the best is lithium manganese, followed by ternary, and the worst is lithium iron.

Note: LMO: lithium manganate, NCA nickel-cobalt-aluminum ternary, NCM nickel-cobalt-manganese ternary, LEP lithium iron phosphate, all positive materials; C: graphite anode

"" lithium manganate batteries are one of the most suitable choices in the future field of electric vehicles," "Feng said. He listed several core reasons.

The first is the most important safety for power batteries. "It's moderately safe. Within 100 KWH, I think manganese lithium can solve the safety problem. And three if do more than forty or fifty degrees of electricity, I think it can not solve the security problem.

Secondly, lithium manganate battery can meet the basic application of the market, "I can achieve the energy density, cycle life I can achieve.

Relative to ternary battery, lithium manganate energy density is relatively low, how to solve? "Pure manganese lithium can't reach the specific energy required by the state today. Try it little by little, and I might be able to add up to 50 percent of my triples in the future. Another part of the people do pure ternary, in the cost challenge, will inevitably add lithium manganese acid, from 10% of lithium manganese acid to 20%, or even to 50%. So who is lithium manganate and who is ternary? Under the premise of meeting the basic needs of the market application, who has the ability to mix more lithium manganate, who makes more money.

For manganic acid lithium challenge the biggest cycle life, the product can ensure the constant power supply 2000 cycle capacity to maintain above 80%, to ensure that commercial vehicles run 5 years 200,000 km or passenger vehicles run 8 years 120,000 km. "If the average range is 300 km a single time, if you want to run more than 400,000 km, 1,500 cycles is enough."

"The next most important thing is cost. And the cost is manganese lithium optimal." Feng recalled that in 2015, when the price of power battery materials did not increase rapidly, lithium manganate was about 30,000 yuan per ton, lithium iron was 80,000 to 90,000 yuan, and three yuan was 110,000 yuan. "What became of him three years later? Lithium manganate is now 61,000 tons. Iron lithium is more than 80,000, there is no change, experienced a price rise after the correction, because the bus demand down. Three yuan has now become 250,000, 270,000.

"Of course, the choice of lithium manganate, as well as our design, management and engineering series, through 15 years of precipitation and accumulation, based on a deep understanding of the product and the establishment of comparative advantage, so that we can be more than the general manufacturer cost advantage, this is our ability.

As a result of this series of cost advantages, xingheng is ready to produce 1 yuan /Wh by the end of 2018.

The logic of market and strategic positioning

In 2017, the company achieved a revenue of 1.436 billion yuan and a net profit of 202 million yuan. Moreover, the star constant power supply does not have the huge receivables question.

Do the same power battery, star constant power supply is not the same, in the final analysis, is the choice of industry, customers, choose models.

"The first sentence of my core strategy is two-wheel drive. On my left hand, there are light vehicles, including electric bicycles, electric motorcycles, electric tricycles and low-speed four-wheelers. I have an electric car in my right hand. Without the market of two industries, risks cannot be borne in the process of policy fluctuations and market changes. Today, even if an electric car battery cannot sell, I will not die, I can also have a good return and profit.

Star heng power in the light electric vehicle field has been operating for 15 years, is the domestic electric two-wheeled vehicle market share of the first lithium electric enterprises. In 2017, the company shipped 1.2 million sets of batteries in the light vehicle industry. In addition to the existing European market and domestic advantage customers, overseas also opened up the southeast Asian market.

In terms of model selection, the selection of Xingheng power supply is mainly commercial vehicles, giving consideration to both passenger vehicles, but focusing on the opportunity points of passenger vehicle operation. "In the next three to four years, we are determined to become a leader in the segment of commercial vehicles, especially logistics vehicles." "Although passenger cars are the main force, electric logistics vehicles are the first model that can form a virtuous cycle," Feng said.

As for passenger cars, "I would like to focus on online car hailing and taxi, with one or two mainstream passenger car manufacturers, really do a model or two on the OK.

The fundamental logic of developing electric cars

There is obviously a more fundamental logic behind the choice of Xingheng power supply to take lithium manganate as the core, the technical route of manganic multivariate compound lithium, and the determination of its own strategy. This is the fundamental value judgment of the development of electric vehicles by star power.

"Electric cars are competing with internal combustion engines that have been developed for more than 100 years. "It's all about efficiency, cost-effectiveness and cost-efficiency -- making the planet travel in a way that costs the least. That's the core issue."

When it comes to the development of electric cars in China, "we must calculate the economic account, we must calculate the account." How does star Heng calculate?

"The cost of electric cars is just above the battery. With today's technological content and knowledge level, 1 yuan per watt hour is quite remarkable. A battery pack, whether it's a car or a truck, has to have 40 or 50 kilowatt-hours of power. The battery must cost forty or fifty thousand dollars.

One of the key assumptions for getting this 40,000 or 50,000 dollars back is the difference between 100 kilometers of fuel consumption and electricity consumption. "Fifty yuan is objective. "If you have a private car, you can only run 100,000 to 120,000 kilometers in its entire life cycle, and you can only save the cost of a battery pack, which will take you five to seven years.

"If it is a logistics vehicle or a truck, it can run 200,000 to 300,000 yuan in the product life cycle. (the difference in fuel and electricity is accumulated), it can cover the cost of the battery and save the money of two sets of batteries. This business is ok... It's a sure thing.

"If you have a ride-hailing service or a taxi that can run 400,000 to 500,000 kilometers over the life of the product, in addition to covering the cost of the battery, you can save four or five extra battery packs, that's a perfect financial model and a good business." "Of course, the premise is that the quality is up to standard," feng added. "you can't carry four or five million kilometers with three groups."

Such economic account, did not calculate government subsidy. "We do see that electric cars can match the efficiency of the internal combustion engine industry, so I'm optimistic," Feng said. And in the "compete with internal combustion engine" economic account, the cost advantage of lithium manganate, can be faster than the advantages of paper cash.

Feng xiao himself was actually the first to work in Lenovo investment. In 2003, he invested himself in hengxing power supply. Later, he was gradually promoted to the position of sales manager, product manager, PACK factory director, general manager of business division, vice general manager of the company and general manager until the chairman of the board.

In addition, xing heng has huang xuezhuo, a researcher at the institute of physics of the Chinese academy of sciences, as the chief scientist. Wang zhengwei, vice President with over 28 years of experience in battery r&d and technology management; Yu guohua, member of the nickel metal hydride battery expert group under the national "863" plan and the ninth five-year plan, is the consultant.

On the basis of both accumulation, star constant power supply also has talent, capital continued to support. As a former investment manager, feng said, "today, xingheng is still ranked fifth in the lithium battery industry, but it has rapidly growing investment value and capacity."

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