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Full solid-state battery section (data sheet).
It has been 150 years since the battery was developed. However, the structure of the battery has not undergone major changes. Regardless of which electrochemical system is used (such as lead-acid batteries, nickel-metal hydride batteries, or lithium-ion batteries), the electrodes need to be infiltrated with liquid electrolytes and react with them to generate electrical current. This solid-state and liquid-state structure inevitably leads to a large cell volume and the risk of liquid leakage. Therefore, the all-solid-state battery structure is widely regarded as a more attractive solution.
Take a lithium-ion battery as an example: Replace a flammable liquid electrolyte with an inorganic ceramic material. The battery's volume can be reduced by half, and there is no security risk. However, the lack of high-conductivity solid-state electrolyte materials has greatly hindered the development of all-solid-state batteries, and at the same time, the production of all-solid-state batteries also imposes higher requirements on equipment and processes. The use of thin film deposition technology can solve these two problems together, and the resulting battery has a longer cycle life and can be charged in minutes. Current scientists from the United Kingdom have successfully built prototypes of all-solid-state thin-film batteries and achieved all the expected advantages. This innovative technology was jointly developed by Ilika and the auto giant Toyota. Ilika is a UK based material development company that is assisting Toyota in the development of several technologies, including the development of solid electrolytes. Joint project development has created a new thin-film battery production technology that is suitable for large-scale production. Toyota has announced preliminary results at several European technology conferences. It is reported that Ilika CEO Graeme Purdy will attend the Low Carbon Earth Summit (LCES) held in Dalian in October and will introduce the all-solid-state thin-film battery technology on October 20.
The new all-solid-state battery is synthesized by deposition and is in the form of a multilayer film. Ilika's unique high-throughput physical vapor deposition platform was used in the development process, which can accelerate the development of basic materials by 10 to 100 times. With its technical advantages, Ilika has attracted a large number of leading global multinational corporations to cooperate in R&D. For example, Dr. Joep Huijsmans, R&D director of Shell Hydrogen Energy, once commented: “Ilika's high-throughput synthesis and screening technologies are very productive and have left a deep impression on us during the cooperation process.†Shell Hydrogen is also a partner of Ilika. one.
Ilika's all-solid-state thin-film batteries have improved all-round performance compared to conventional batteries, which can meet the needs of important market segments: the thickness and weight of batteries are reduced by 30%; the mileage of electric vehicles is greatly increased, and only a few are needed. Recharge in minutes; the power grid can be equipped with energy storage systems for renewable energy projects that last for decades. More importantly, with the expansion of production scale, the production costs of all-solid-state thin-film batteries will rapidly decline at the same speed, since the production technology of thin films and photovoltaic and semiconductor industries have many common points.
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