Kabushiki Kaisha Toshiba

Titan Kogyo Kabushiki Kaisha

Hiroki Inagaki

Norio Takami

Yasuhiro Harada

Keigo Hoshina

Yoshinao Tatebayashi

Hidesato Saruwatari

Shinsuke Matsuno

Hideaki Morishima

Yorikazu Yoshida

Kazuki Ise

Takuya Iwasaki

Yuki Otani

Yumi Fujita

Wen Zhang

Tomokazu Morita

Seiichi Suenaga

Kazuhiro Yasuda

Yasunobu Yamashita

Takashi Kishi

Tetsuya Sasakawa

Tatsuoki Kohno

Kunihiko Wada

Haruchika Ishii

Takashi Kuboki

Kazuomi Yoshima

Mitsuru Ishibashi

Masako Nakahashi

Yuji Sato

Koichi Harada

Hiromitsu Takeda

Atsushi Kamata

Masataka Shikota

Yuichi Kikuma

Toshihide Arikawa

Hirotada Tahara

Dai Yamamoto

Yasuhiro Goto

Hideki Satake

Shoji Ootaka

Yoshiyuki Isozaki

Kiyoshi Kanamura

Hirotaka Hayashida

Kengo Kurata

Noriaki Oodachi

Yoshiaki Asami

Kazuya Kuriyama

Teruo Hiruma

Toshimasa Seki

Hidenori Ishioka

Shirou Takeno

Kiyoshi Nakahara

Wataru Mino

Hidetoshi Watanabe

Atsuhiko Izumi

Kazuko Takanezawa

Nori Takami

Tetsuzou Sakamoto

Kazuko Newton

According to one embodiment, an electrode includes a current collector and an active material layer. The active material layer is disposed on at least one of faces of the current collector. The active material layer comprises active materials which include at least a cobalt-containing oxide and a lithium nickel manganese oxide. A ratio of a weight of the cobalt-containing oxide to a total of weights of the cobalt-containing oxide and the lithium nickel manganese oxide is 5 wt % or more and 40 wt % or less.

Electrode, non-aqueous electrolyte battery, battery pack, and vehicle

According to one embodiment, an electrode is provided. The electrode includes a current collector, an electrode mixture layer, and a self-assembled film. The first self-assembled film covers at least a part of a surface of the current collector. The first self-assembled film contains organic molecules. The electrode mixture layer disposed on at least a part of the first self-assembled film.

Electrode, secondary battery, battery pack, vehicle, and stationary power supply

According to one embodiment, provided is a lithium zinc secondary battery including a positive electrode, a negative electrode, an aqueous electrolyte, and a separator between the positive electrode and the negative electrode. The negative electrode includes a zinc-including metal body and an oxide on at least a part of a surface of the metal body. The aqueous electrolyte includes zinc and a lithium salt. Zinc is dissolved and deposited at the negative electrode. Lithium is inserted and extracted from the oxide in a range of &#x2212;1.4 V (vs. SCE) or more and &#x2212;1.0 V (vs. SCE) or less. A specific surface area of the oxide is 10 m/g or more and 350 m/g or less. A mol concentration ratio Zn/Li between zinc and lithium in the aqueous electrolyte is 1.0&#xd7;10or more and 0.3 or less.

Lithium zinc secondary battery, battery pack, vehicle, and stationary power supply

According to one embodiment, a solid electrolyte includes a sintered body of ceramic grains. The sintered body includes a crystal plane having an ion conducting path. The crystal plane is oriented in a direction which intersects at least one surface of the solid electrolyte.

Solid electrolyte, manufacturing method of solid electrolyte, battery and battery pack

According to one embodiment, a battery module includes a battery unit. The battery unit includes a nonaqueous lithium ion battery including a nonaqueous electrolyte, and an aqueous lithium ion battery including an electrolytic solution in which an electrolyte is dissolved in an aqueous solvent. In the battery unit, the aqueous lithium ion battery is connected in parallel to the nonaqueous lithium ion battery.

Battery module, battery pack, vehicle, and stationary power supply

According to an embodiment, there is provided a battery system. The battery system includes a first battery and a second battery connected in parallel with the first battery. The first battery includes a lead storage battery. The second battery includes a nonaqueous electrolyte battery. The nonaqueous electrolyte battery includes a positive electrode and a negative electrode. The negative electrode includes a negative-electrode-mixture layer, and the negative-electrode-mixture layer contains lithium titanate. The positive electrode contains a positive electrode active material LiMnM(a)O. A ratio of a battery capacity of the second battery to a battery capacity of the first battery is in a range of 1/133 to 1/2.

Battery system

According to one embodiment, a secondary battery including a positive electrode, a negative electrode, and an electrolyte is provided. The negative electrode includes titanium-containing oxide and at least one kind of element selected from the group consisting of B, P, Al, La, Zr, Ge, Zn, Sn, Ga, Pb, In, Bi, and Tl. The electrolyte includes lithium ions and a solvent containing water.

Secondary battery, battery module, battery pack and vehicle

According to one embodiment, a nonaqueous electrolyte battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. The positive electrode includes at least one oxide selected from the group consisting of a first oxide having a spinel structure and represented by LiNiMnO, a second metal phosphate having an olivine structure and represented by LiMnFePO, and a third oxide having a layered structure and represented by LiNiMnCoO. The nonaqueous electrolyte includes a first solvent. The first solvent includes at least one compound selected from the group consisting of trimethyl phosphate, triethyl phosphate, tripropyl phosphate, tributyl phosphate, and fluorinated phosphate ester.

Nonaqueous electrolyte battery and battery pack

According to one embodiment, there is provided an active material. The active material includes a composite oxide having an orthorhombic structure. The composite oxide is represented by the general formula Ti(NbTa)O(0&#x2264;x&#x2264;1). The composite oxide has an average valence of niobium and/or tantalum of 4.95 or more.

Active material, nonaqueous electrolyte battery, and battery pack

According to one embodiment, a battery active material is provided. The battery active material includes monoclinic complex oxide represented by the formula LiTiM1NbM2O(0&#x2264;x&#x2264;5, 0&#x2264;y&#x2264;1, 0&#x2264;z&#x2264;2, &#x2212;0.3&#x2264;&#x3b4;&#x2264;0.3). In the above formula, M1 is at least one element selected from the group consisting of Zr, Si and Sn, and M2 is at least one element selected from the group consisting of V, Ta and Bi.

Battery active material, nonaqueous electrolyte battery and battery pack

According to one embodiment, there is provided a positive electrode active material containing positive electrode active material particles. The positive electrode active material particles have an olivine structure. The positive electrode active material particles are represented by LiMnFeMPO(0&#x3c;x&#x2264;0.5, 0&#x2264;y&#x2264;0.2, and M is at least one element selected from the group consisting of Mg, Ni, Co, Sn, and Nb) and satisfy, Formula (1) below.&#x3b2;&#x3c;&#x3b1;&#x2003;&#x2003;(1),

Positive electrode active material, nonaqueous electrolyte battery, and battery pack

According to one embodiment, there is provided an active substance. The active substance contains active material particles. The active material particles comprise a compound represented by the formula: TiM1NbM2O. The active material particles has a peak A attributed to a (110) plane which appears at 2&#x3b8; ranging from 23.74 to 24.14&#xb0;, a peak B attributed to a (003) plane which appears at 2&#x3b8; ranging from 25.81 to 26.21&#xb0; and a peak C attributed to a (02) plane which appears at 2&#x3b8; ranging from 26.14 to 26.54&#xb0; in an X-ray diffraction pattern of the active material particles. An intensity Iof the peak A, an intensity Iof the peak B, and an intensity Iof the peak C satisfy the relation (1): 0.80&#x2264;I/I&#x2264;1.12; and the relation (2) I/I&#x2264;0.80.

Active substance used for nonaqueous electrolyte battery

According to one embodiment, a secondary battery is provided. The secondary battery includes a negative electrode including a negative electrode current collector, a negative electrode terminal electrically connected to the negative electrode current collector, a joint electrically connecting the negative electrode terminal and the negative electrode current collector, and a water repellent layer covering the joint. The joint is covered with the inner surface of the water repellent layer. A contact angle &#x3b8; with respect to water on an outer surface of the water repellent layer satisfies 80&#xb0;&#x2264;&#x3b8;.

Secondary battery, battery pack, and vehicle

An active material for a battery includes a mixed phase includes a lithium titanium composite oxide phase and a nonstoichiometric titanium oxide phase. This active material is excellent in lithium absorption/desorption performance, exhibiting high electric potentials in lithium absorption/desorption and high conductivity.

Active material for battery, manufacturing method of the same, non-aqueous electrolytic battery and battery pack

Growing community of inventors

Kawasaki, Japan

Hiroki Inagaki