Apb Corporation

Sanyo Chemical Industries, Ltd.

Kotaro Nasu

Hideaki Horie

Yusuke Mizuno

Yasuhiko Ohsawa

Hiroshi Akama

Hajime Satou

Yuki Kusachi

Yusuke Nakashima

Yasuhiro Shindo

Kenichi Kawakita

Ryosuke Kusano

Yohji Kawasaki

Yusuke Mori

Takuya Suenaga

Keiichiro Higashi

Naoya Omae

Yuki Nekohashi

Tomoya Ohta

A lithium ion battery including a cell formed by sequentially stacking a positive current collector, a positive active material layer, a separator, a negative active material layer, and a negative current collector, the lithium ion battery being characterized by including a frame member disposed between the positive current collector and the negative current collector to seal the positive active material layer, the separator, and the negative active material layer, the frame member having, disposed therein, an electronic component for detecting an internal condition of the cell.

Lithium ion battery and method for assessing deterioration of lithium ion battery

A cell system includes: a stacked-type cell module () having a plurality of lithium ion unit cells () being stacked and having through holes () formed therein; a gas supply part (); a cooling liquid supply part (); a temperature sensor (); and a control part () that controls switching between a normal control mode and a high-temperature control mode based on a signal from the temperature sensor (). In the normal control mode, the control part () controls the gas supply part () to supply a gas to the through holes (), and at the same time, controls the cooling liquid supply part () to stop supply of a cooling liquid, and in the high-temperature control mode, the control part () controls the cooling liquid supply part () to supply the cooling liquid to the through holes () to which the gas is supplied, and at the same time, controls the gas supply part () to stop supply of the gas. According to this cell system, the increase in temperature of the cell is suppressed while having a simple configuration with a reduced formation region of through holes provided in a lithium ion cell.

Cell system

The present invention provides a viscous adhesive capable of retaining the shape of an electrode and allowing for production of an electrode for a lithium-ion battery having a structure in which the energy density of the electrode does not decrease. The present invention relates to a viscous adhesive for a lithium-ion electrode which allows active materials to adhere to each other in a lithium-ion electrode, the viscous adhesive having a glass transition temperature of 60&#xb0; C. or lower, a solubility parameter of 8 to 13 (cal/cm), and a storage shear modulus and a loss shear modulus of 2.0&#xd7;10to 5.0&#xd7;10Pa as measured in a frequency range of 10to 10Hz at 20&#xb0; C., wherein the viscous adhesive is an acrylic polymer essentially containing a constituent unit derived from a (meth)acrylic acid alkyl ester monomer, the proportion of the (meth)acrylic acid alkyl ester monomer in monomers constituting the viscous adhesive is 50 wt % or more based on the total monomer weight, and the proportion of a fluorine-containing monomer is less than 3 wt % based on the total monomer weight.

Adhesive for lithium-ion electrode, electrode for lithium-ion battery and method for manufacturing electrode for lithium-ion battery

Growing community of inventors

Kyoto, Japan

Kotaro Nasu