公开(公告)号：US20180306649A1

公开(公告)日：2018-10-25

申请号：US15769593

申请日：2015-10-21

Applicant: HITACHI, LTD.

Inventor： Yasuhiko TADA ,  Masahiro KAWASAKI ,  Kohhei AIDA ,  Hiroshi SASAKI ,  Toyotaka YUASA ,  Hiroyuki KAGAWA

IPC: G01K11/16 ,  G01K1/02 ,  H01B1/22

CPC classification number: G01K11/16 ,  C09K3/00 ,  G01K1/02 ,  H01B1/22

Abstract: The present invention addresses the problem of providing a temperature sensing body capable of sensing both a temperature increase and a temperature decrease, and having an anti-tampering function. In order to solve said problem, this temperature sensing body is characterized by including: a first ink in which a temperature Ta1 for initiating color disappearance when the temperature rises and a temperature Td1 for initiating color development when the temperature falls are different; and a second ink in which a temperature Ta2 for initiating color disappearance when the temperature rises and a temperature Td2 for initiating color development when the temperature falls are different, wherein the temperature Ta1 for initiating color disappearance, the temperature Td1 for initiating color development, the temperature Ta2 for initiating color disappearance, and the temperature Td2 for initiating color development have the relationship, Td1

公开(公告)号：US20180217114A1

公开(公告)日：2018-08-02

申请号：US15747794

申请日：2016-07-22

Applicant: Hitachi, Ltd.

Inventor： Sukekazu ARATANI ,  Hiroshi SASAKI ,  Toyotaka YUASA ,  Kohhei AIDA ,  Yasuhiko TADA ,  Masahiro KAWASAKI

IPC: G01N31/22 ,  G01N33/02 ,  G01N33/15 ,  B32B29/00 ,  G01K11/12 ,  G01K11/18 ,  G01K11/16

CPC classification number: G01N31/229 ,  B32B29/002 ,  B32B2250/03 ,  B32B2255/12 ,  B32B2323/04 ,  B32B2519/00 ,  G01K3/04 ,  G01K11/12 ,  G01K11/16 ,  G01K11/18 ,  G01N33/02 ,  G01N33/15

Abstract: A purpose of the present invention is to provide a temperature history indicator that allows for visual confirmation of whether the temperature is at or below a prescribed temperature as well as simple conversion of this information into data. A temperature history indicator according to the present invention is characterized by being provided with a label layer and a temperature-indicating layer laminated above or below the label layer, wherein the temperature-indicating layer includes a substance having at crystallization starting temperature of 10° C. or lower and a melting point at least 20° C. higher than the crystallization starting temperature.

公开(公告)号：US20160254542A1

公开(公告)日：2016-09-01

申请号：US15027623

申请日：2013-10-23

Applicant: HITACHI, LTD.

Inventor： Hiroaki KONISHI ,  Akira GUNJI ,  Tatsuya TOYAMA ,  Xiaoliang FENG ,  Sho FURUTSUKI ,  Toyotaka YUASA ,  Mitsuru KOBAYASHI ,  Hisato TOKORO ,  Shuichi TAKANO ,  Takashi NAKABAYASHI

IPC: H01M4/525 ,  H02J7/00 ,  H01M10/46 ,  H01M10/48 ,  H01M10/0525 ,  H01M4/505

CPC classification number: H01M4/525 ,  C01G53/50 ,  C01P2006/11 ,  H01M4/505 ,  H01M10/0525 ,  H01M10/44 ,  H01M10/46 ,  H01M10/48 ,  H01M2004/028 ,  H02J7/007

Abstract: The objective of the present invention is to provide a lithium ion secondary battery, the charged state of which can be detected from the battery voltage with high accuracy, and which is able to achieve a high capacity in a high-potential range. This objective can be achieved by a cathode active material for lithium ion secondary batteries, which is composed of a lithium transition metal oxide containing Li and metal elements including at least Ni and Mn, and which is characterized in that: the atomic ratio of Li to the metal elements satisfies 1.15

Abstract translation: 本发明的目的是提供一种锂离子二次电池，其充电状态可以从电池电压以高精度检测，并且能够在高电位范围内实现高容量。 该目的可以通过由锂离子二次电池的锂过渡金属氧化物和至少包含Ni和Mn的金属元素构成的锂离子二次电池用正极活性物质来实现，其特征在于：Li与 金属元素满足1.15