1)  Battery Electrodes

Fluorine-free binders for high-mass-loading cathodes

Ionic binders for high-mass-loading cathodes

To enhance the performance (structural integrity, interfacial stability, electrochemical performance) of electrodes and batteries, it is essential to impart functionality to the polymeric binder within the electrodes.

Low-areal-capacity electrode

High-areal-capacity electrode

The design of high-areal-capacity electrodes, enabled by increasing the areal-mass-loading of electrode active materials, offers benefits such as enhanced      cell energy density and cost reduction by minimizing the use of inactive components.

Aqueous-process fabrication

Dry-process fabrication

Dry & aqueous-processable electrode technology offers the potential to advance lithium-ion batteries (LIBs), which could lead to reduced carbon emissions, lower costs and increased energy density.

Development of redox active materials 

Active protective layers

Gradient protective layers

Our research on lithium metal anode primarily aims to stabilize lithium metal anode. By designing the architecture of the current collector, we object to effectively reduce the local current density and increase the reversibility of Li plating/stripping. Furthermore, to harness the benefits of both the stable lithiations-based anodes and the high-capacity Li metal anodes,  we utilizes a hybrid intercalation and conversion storage mechanism for Li ions.

  2)  Battery Electrolytes

Low temperature electrolytes 

Biphasic electrolytes

Fast-charging electrolytes

Our research on liquid electrolytes is primarily aimed at regulating the interactions between cations, anions and solvents with the goal of surpassing the performance and stability of traditional systems. We are also investigating the potential applications of these electrolytes in various battery configurations,      such as lithium-sulfur, lithium-metal, and zinc-based batteries.

Liquid droplets

for all-solid-state batteries

Polymer-liquid hybrid electrolytes

Sulfide-polymer hybrid electrolytes

Our solid-state electrolyte research is dedicated to overcoming the shortcomings of traditional materials by developing liquid droplets and hybrid electrolytes.    By integrating the advantageous properties of liquid (gel) electrolytes with various solid counterparts, these innovations aim to significantly improve ionic conductivity, energy density, cyclability, and safety. Such advances offer promising solutions for the advancement of next-generation battery systems.

Functional separators for Li metal full cells

Customized separators for pure Si-based full cells

We aim to improve battery performance through the tailored design of separators specific to each electrode and electrolyte system. By considering various separator materials and structures, along with their physical and chemical properties, we intend to create customized designs that address and overcome the limitations previously encountered in each system.

  3)  Nanoprinted Artistic Power Sources

Conformal printable batteries

Transparent printable supercapacitor

We aim to design the power sources to achieve structural unitization with complex-shaped electronic devices using printing method. Through direct ink writing (DIW)-based nonplanar 3D printing method, we are trying to develop power-integrated wireless devices so that it can be in various fields such as bioengineering, medical devices, and aerospace. On the other hand, our research focuses on developing transparent power sources as well by utilizing nano-printing technology so that it can be utilized in smart window or agricultural field. Our final goal is to achieve the structural unity between power source and electronic devices via utilizing nano-printing technology.