Aiming to 500Wh/kg, check the progress of Wanxiang /CATL/BYD solid state battery.

Despite the large-scale use of still need to wait patiently, but no one questioned the application prospect of solid-state batteries.

In range anxiety and subsidies threshold up, under the multiple pressures of makers have been struggled to seek to promote electric vehicle range. Although in theory can be achieved by increasing the battery loading capacity, but followed by power system cost and the increase of the weight, from the Angle of economy and safety, improve the battery energy density is the fundamental method.

In response, the Chinese academy of engineering academician Chen has previously made it clear that: "to further improve the energy density, must consider all solid state lithium batteries from now on." Solid-state batteries using solid electrodes and electrolyte, the solid material can replace lithium ion batteries energy density of liquid electrolyte, prompting product promotion, reduction in weight, safety improvement and shorten the charging time.

There is no doubt that mature lithium-ion battery in a short period of time will still be dynamic, consumer electronics and the best choice of small and medium-sized energy storage. But subject to the existing system architecture and key material, lithium ion battery energy density to achieve 300 wh/kg will have a great difficulty.

And according to the national "energy conservation and new energy automotive technology roadmap", by 2025, the pure electric vehiclesPower batteryThe energy density of the target for 400 wh/kg, 2030 target of 500 wh/kg.Obviously, the medium and long term development of new energy automotive industry needs a new technical reserves, solid-state lithium battery is expected to become the next generation of automotive power battery leading technical route.

The electric car manufacturers fisker application of solid-state batteries at the end of 2017 patents, to a certain extent provided evidence for the performance advantages of solid-state batteries.Fisker revealed its solid-state batteries after a single charge, can support electric cars for 804 km, charging time is only 1 minute.In addition, affected by the materials and manufacturing level, the cost of the solid-state batteries is only 1/3 of the conventional lithium ion battery is expected to cost 2020, par for electric vehicle performance overall fuel cars.

In fact, in addition to security, high energy density, solid state lithium battery has long cycle life, film type solid-state metal lithium battery can loop 45000 times), wide working temperature range (maximum operating temperature is 300 ℃ or higher), wide electrochemical window, is expected to be up to 5 v), provide flexible advantage (can be prepared into thin-film batteries and flexible battery), easy to recycle waste outside (in theory).

Honorary chief technology officer agms yoshino akira as its platform, also said publicly: "a new generation of battery, is the most close to the practical solid state lithium battery."

Despite the expected performance is superior, and has a lot of laboratory can small batch manufacture the energy density of 300-400 wh/kg of solid-state batteries, but the personage inside course of study is generally believed that solid-state batteries to industrialization still need some time, really realize small-scale production is expected in 2020, large scale requires more time.

Calm applied cognitive didn't prevent his passion for solid-state batteries both at home and abroad, completely understands the lithium electricity, at home, including universal, ningde hin high-tech era, BYD, countries, jiangxi feng LiYe, hundred million weft lithium can, yoga wei shares, and other enterprises are actively reserves, and look overseas, including Toyota, BMW, hyundai, dyson, apple, his group, companies such as panasonic, Bosch has been carried out actively in the field of solid-state batteries layout.

"Loving" solid-state batteries Toyota had clear foreign "" palpitations", said the company is to research and development of all solid state lithium ion batteries, and has developed a prototype battery energy density of 400 wh/L.Toyota, the researchers said the battery in the commercial application of 2020, about a substantial improvement in 2025.

The solid state battery technology reserve and development progress of domestic enterprises?Can continue to in the internationalLithium ion power batteryArea occupy the heights?High lithium electricity, combing universal, ningde hin high-tech era, BYD, countries, jiangxi feng LiYe, yoga can wei co, easily into new six of the solid-state batteries business progress domestic enterprises for reference, specific as follows:

01

Universal a new generation of solid-state batteries will be used in BMW xEV series

Universal is by many in the industry as a lithium electricity industry to hide the existence of the big BOSS, its reserves to be reckoned with in the field of solid-state batteries.

In September 2017, universal, A123 systems company invested SolidPower (solid power companies in the United States), which focus on development/expand competitive solid-state batteries, has been to create the capacity of two to three times higher than traditional lithium-ion solid-state batteries.

In November 2017, the electric car maker wanxiang group, has applied for a patent of solid-state batteries, the product can be electric range up to 800 kilometers, the charging time to 1 minute.

In February 2018, universal and cast SolidPower confirm cooperate with BMW, the two sides will jointly develop a new generation of electric cars solid-state battery technology, according to BMW's statement, a new generation of solid-state batteries products applied in the BMW xEV series models.

Then universal again enlarged the layout in the field of solid-state batteries, the end of February 2018, universal announced, A123 systems inc., a subsidiary of ionic materials companies in the United States for the investment.Ionic materials co., LTD. Is a new material technology co., the company developed a special polymer electrolyte, new solid state battery performance can be raised to a new level.

02

Ningde era has route of formulation and implementation of solid-state batteries

Ningde era in the field of solid-state batteries, showing the lithium electricity bibcock of careful and professional.

Before the formal cut into solid-state batteries, ningde era of global solid-state batteries enterprise has carried on the investigation, and after that to determine its own development direction.In October 2016, ningde era new energy Dr LiuNa introduces the ningde era in solid state lithium polymer battery, sulfide layout and development path in the field of solid-state batteries.

Solid state lithium polymer battery in ningde era mainly developed solid-state lithium polymer battery, based on the conductivity of the battery, the processing performance improvement, design and production capacity of 325 mah polymer batteries, and show the better performance of high temperature cycle.

Sulfide solid-state batteries, through the study of the surface modification of cobalt acid lithium anode materials, coating modification and improved the interfacial compatibility of the positive and solid electrolyte, the capacity of positive electrode materials play a significantly increased;Develop mixed process, can be in cobalt acid lithium is formed within the anode steady uniform electrons and ions transport network, achieve cell cycle performance improvement;Improve the stability of sulfide in the air, for the battery manufacturing costs to reduce possible...

In addition, according to the characteristics of the material system and large-scale production needs, ningde era to explore all solid state battery manufacturing process, put forward the following process: the anode material and mixing the ionic conductors and coating;After a warm-up, form continuous ionic conduction channel;After a secondary coating LPS, and then to hot pressing, all solid state can be removed after the pore;Then after coating buffer layer and metal lithium composite superposition.Dr LiuNa said that although the technology with the traditional lithium-ion battery technology difference is bigger, but ningde era have confidence out of a characteristic of innovation.

03

BYD determine solid-state batteries for the future development direction

BYD founder wang chuanfu in battery experts, was identified with solid-state batteries in the mid - 2016 - tone for lithium battery in the future direction of development.

BYD 2016 interim results meeting, according to the company that solid batteries will be the future direction of lithium-ion batteries, has been trying to use small, and determined the will in the next 10 years, the fastest five years to provide this type of products.

In August 2017, BYD has applied for a kind of all solid state lithium ion battery anode composite material and a patent for invention of all solid state lithium ion batteries.

In January 2018, BYD chairman secretary said on interactive platform, the company is actively promote solid-state batteries commercial project.

04. The porch high-tech semi-solid battery positive pilot conversion

Both research and development power and technology training, the porch high-tech the reserve driver of solid-state batteries are mainly comes from overseas.

Hin high-tech foreign said in November 2017, countries have been developing solid-state batteries and solid electrolyte.

Hin high-tech revealed in February 2018, the countries, according to the cooperation with the international line vehicle brand product requirements, the company is the United States and Japan, respectively, to develop the next generation power battery production technology and production equipment, and related products will use the semi-solid battery technology.For upstream, including solid electrolyte, the research and development and industrialization of key raw materials will also pay close attention to progress of the company.

In March 2018, the porch high-tech interactive platform in the investors said the company semi-solid battery technology is now in the laboratory to pilot stage.

05. Jiangxi feng LiYe is expected to be completed by the end of solid-state batteries pilot line

With the upstream material resources of jiangxi feng LiYe radical and practical performance in the area of solid-state batteries.

In 2017, jiangxi feng LiYe ningbo materials by introducing Xu Xiaoxiong (ministry of science and technology of new energy all solid state lithium ionEnergy storage batteryDr), head of the team, the official into solid state battery plates.The data shows, more than 30 Dr Xu Xiaoxiong team has applied for patents (6 international patents, 27 Chinese patents), including 11 authorized patents.

Subsequent planning show that jiangxi feng LiYe proposed implementation before June 2018 for the first generation of solid state lithium battery technology, mature technology and through third-party certification;Built in December 2018 million watts level when the first generation of solid state lithium battery production line, and implement directly;In December 2019 to achieve 300 million yuan of solid-state batteries, and promoting the generation of solid state lithium battery technology mature, achieve the three generations of solid-state lithium battery can be developed.

In December 2017, jiangxi feng LiYe announcement, intended to no more than 250 million yuan investment to build the first generation of solid state lithium battery research and development of pilot production line, the magnitude scale in million watts, 600 million watts of power battery production line mainly matched with solid-state batteries do in the future.

In March 2018, jiangxi feng LiYe confirmation is solid-state batteries for a wide range of experimental work, and has set up a r&d center in ningbo, and a trial production line, to speed up the commercialization of the solid state lithium battery technology.At present, jiangxi feng LiYe solid-state lithium battery is still at the experimental stage, but has been tested through a number of third party security, and is expected to be completed by the end of this year pilot line construction.

06. Yoga wei co solid-state batteries commissioning

Preempt the solid-state batteries "first mover" advantage, yoga wei shares of new product trial run have achieved the desired effect.

In November 2016, yoga wei shares in Shanghai to hold the world's first solid state lithium battery and quick charge lithium battery product launch, illustrates the new product performance, and to emphasize the company's future will be to accelerate solid and quick charge lithium batteries, lithium-ion batteries, the security will be deeper and super performance.

In April 2018, yoga yoga wai wai equity holdings subsidiary dragon can solid-state storage technology company formally put into production, it is alleged that a new type of lithium ion battery using nanometer technology, is a powerful energy storage capacity, in the fast charging, longevity, safety has significant advantages.

Test results show that the new type of battery to complete a charge only need 5 minutes and 40 seconds, can achieve 20000 times charging and discharging cycle, battery life expectancy of 100 years, is expected to be three nails deeply after the breakdown, burning explosion did not appear, to maintain normal work.

07

Can easily into the new plan 9 GWH solid-state batteries

Crossover and easily into new can take precedence in the layout of the solid-state batteries does person of effect, but need to be mindful "anticlimactic.

In November 2017, the main photovoltaic can easily into the new announcement of plans to 70 million yuan to buy a 70% stake, Henan coal leveling country can cut into the lithium battery manufacturing. Ratio of high to 10 GWH of leveling it layout can power lithium ion battery project with a total investment of 5 billion yuan.

Subsequent project feasibility report issued by the listed company, with a total investment of 5 billion yuan will be two phase of construction projects: a period of building capacity of 1 GWH soft monomer battery project, is expected by the end of 2018 commissioning; Second phase of building 9 GWH solid-state batteries, project planning and investment of 4.5 billion yuan, according to the scientific research achievements conversion, is expected to be started in October 2019.

But subsequent with external information display, can easily into the new flagship of solid-state lithium battery products currently only conceptual description, lack of energy density, and the disclosure of the key data such as safety, cycle times, project technology also has certain problem.

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