Sanyo Electric Co., Ltd.

Masahiro Iyori

Toyoki Fujihara

Shigeki Matsuta

Maruo Kamino

Hiroyuki Fujimoto

Takashi Okamoto

Shin Fujitani

Toshiyuki Nohma

Koji Nishio

Masahisa Fujimoto

Yasuhiro Yamauchi

Yuji Hamada

Kenji Okumoto

Yasuyuki Kusumoto

Haruhisa Hashimoto

Seiji Omura

Masahide Miyake

Masaya Nakai

Kazuki Nishimura

Takeshi Yoshida

Hirofusa Tanaka

Hiroko Sanda

Naoki Terada

A nonaqueous secondary battery includes a current cutoff mechanism that cuts off a current in a short period of time in response to a rise in pressure inside a battery outer body in at least one of a conductive path through which a current is taken out from a positive electrode plate to outside of the battery and a conductive path through which a current is taken out from a negative electrode plate to outside of the battery. At least one type selected from an oligomer containing a cyclohexyl group and a phenyl group, a modified product of the oligomer containing a cyclohexyl group and a phenyl group, a polymer containing a cyclohexyl group and a phenyl group, and a modified product of the polymer containing a cyclohexyl group and a phenyl group is present on the surface of the positive electrode plate.

Nonaqueous electrolyte secondary battery and method for manufacturing the same

It is an object of the present invention to provide an organic electroluminescent element having a longer lifetime. In order to accomplish the object, an organic electroluminescent element adapted to comprise a light emitting layer including an organic material between an anode and a cathode is provided with a hole transport layer for transporting holes injected from the anode toward the light emitting layer. Along with the hole transport layer, an intermediate layer having an energy level of a lowest unoccupied molecular orbital lower than those of the hole transport layer and the light emitting layer is provided therebetween.

Organic electroluminescent element and display device or light emitting device equipped with the same

In an electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that has the capability to store and release lithium either electrochemically or chemically and deposited on the current collector, the current collector comprises a copper alloy and has a tensile strength of 400 N/mmor higher, a proportional limit of 160 N/mmor higher, an elastic coefficient of 1.1 N/mmor higher and a surface roughness Ra of 0.01&#x2013;1 &#x3bc;m at its surface that carries the thin film of active material thereon.

Electrode for rechargeable lithium battery and rechargeable lithium battery

An electrode for a rechargeable lithium battery which includes a current collector and a thin film composed of active material that stores and releases lithium and deposited on the current collector, the electrode being characterized in that the current collector has irregularities on its surface and the thin film has spaces extending in a thickness direction of the thin film and configured to increase their width dimensions toward valleys of the irregularities on the current collector surface.

A negative electrode for a nonaqueous electrolyte secondary battery and a nonaqueous electrolyte secondary battery including the negative electrode. The negative electrode is made from aluminum powder or aluminum alloy powder coated with carbon and a conductive polymer. Since aluminum or aluminum alloy has a theoretical maximum capacity as high as 1200 mAh/g, a battery having aluminum or aluminum alloy as the negative electrode material has a high capacity.

Negative electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery having the negative electrode

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Hirakata, Japan

Masahiro Iyori