Why is lithium titanate battery technology in question?

Since Gree acquired setback, Dong Mingzhu put all personal fortune on Zhuhai Silver overweight, exposing the little-known company in the spotlight.

Recently, silver long overcapacity, cash-strapped message continuous fermentation, according to media reports, Hebei silver lung, Chengdu long a massive production shutdown, headquarters in Zhuhai performance also dropped significantly. Now silver, in order not to the situation of excess production capacity, is considered to use "unique" lithium titanate battery technical route, the development prospects of lithium titanate battery has been questioned again.

Silver long layout: with specific application scenario

First started with lithium iron phosphate silver implants, why choose lithium titanate this article "the path of the few"?

Titanium acid lithium batteries, lithium titanate is simply used as the battery anode materials, and manganese acid lithium, ternary material or lithium iron phosphate anode materials such as 2.4 V or 1.9 V lithium ion secondary battery, its biggest advantage is safety, fast charge, long cycle life, wide temperature resistant performance is good.

And silver of lithium titanate technology, the titanium nanometer science and technology co., LTD from the United States, the United States the titanium is the global leader in the lithium titanate technology route of the company, in 2006 launched its core product titanium acid lithium battery. In 2010, silver long spent more than 300 million RMB acquired the 53.6% stake in the titanium will introduce domestic lithium titanate battery, and has become one of the few domestic lithium titanate material to achieve power and industrial application of the enterprise.

Dong Mingzhu in the silver, just because of this, she said, "the acquisition of Zhuhai silver, not just to do camp and crossover into the automobile industry, more important is the Zhuhai silver of lithium titanate battery technology".

Silver lung through on research and development, in three years makes lithium titanate battery energy density increased by 30%.At present, in the case of constant volume, silver long lithium titanate battery has achieved from 25 to 40 ah ah capacity capacity of research and development, and production successfully.

But with lithium iron phosphate, ternary lithium titanate material, compared the energy density is low, the battery under the background of development in the direction of high energy density, lithium titanate is difficult to become a mainstream technology route.

From the point of the strategy of silver lung, its market positioning mainly aimed at the short quick charge, hybrid, with specific application scenarios, such as high frequency energy storage in order to avoid the red sea market, power in the battery has a large amount of industry.

The recent market application of lithium titanate, mainly concentrated in the field of energy storage, such as the beginning of may, golden road group with 6 million yuan in Xinjiang in harmony and, through Xinjiang and investment implementing Xinjiang Hami 100 MWH lithium titanate energy storage power station project FM. Shanghai electric joint venture with the porch established high-tech enterprise, specializes in energy storage of lithium titanate battery project.

"Because of the high cost of energy storage, so we're going to find suitable for the application of lithium titanate scene, need some high power, higher requirements for safety, life of some application scenarios, that I can." Silver long new energy sales director lee jiing said.

Through scale expansion in the field of passenger cars, silver long to reduce the lithium titanate battery costs, at present the production of passenger cars has operations in more than 80 cities in China.

Industry: low energy density

However, from the point of the current situation of excess production capacity, the layout of the silver long is difficult to achieve.

Silver long battery technology in the field of passenger cars, the density of the board is still visible. News of a wide range of car battery support is about 30 kilometers, driver need frequent charging. It is reported that various kinds of inconvenience, due to short range of Wuan in Hebei province has put some silver long electric buses run township changed back to fuel the bus.

In the field of energy storage, due to the development of the domestic energy storage has not been fully, application market needs to expand.

Industry experts said: "there must be room to improve on the technology, but theory can become a real thing. Segment to improve the energy density, is bound to sacrifice other aspects, such as security, life, etc."

Lithium industry internal energy technology a Dr To rtvu data journalists say, don't think too much of a lithium titanate exist value, some cost is not sensitive on the specific use of possible applications.

Day group technical director Hou Guoyou said that at a certain stage of cell cycle will bilge gas, namely can produce gas. Electrolyte and lithium titanate interface in the reaction process to produce gas, it is determined by nature. But can suppress? At present in the industry believe that this is the main problem, lithium titanate battery is also such a technical potential risks.

In addition, because titanium is more expensive, which leads to the lithium titanate cost is higher, so the lithium titanate market share is not high. New energy bus market in 2017Power battery carrying amount of 14.3 GWh, among them lithium iron phosphate batteries12.84 GWh, accounted for 90%;Lithium titanate battery only 0.57 GWh, accounted for 3.99%.

New energy material and technology of Beijing university, director of the laboratory, the national "11th five-year plan" 863 electric cars power lithium battery project director lu had told reporters, he insisted that lithium titanate energy density is too low, not suitable for electric vehicles, especially not suitable for private cars.

Lithium titanate is there living space in the market has yet to be time to verify, but sources said the titanium in the United States also is not very desirable, the development of lithium titanate battery cooperation with auto makers did not achieve good results.

The page contains the contents of the machine translation.