公开(公告)号：US20160079634A1

公开(公告)日：2016-03-17

申请号：US14690527

申请日：2015-04-20

Applicant: HITACHI, LTD.

Inventor： Taigo ONODERA ,  Jun KAWAJI

IPC: H01M10/42 ,  H01M4/04 ,  H01M4/139 ,  H01M10/0562

CPC classification number: H01M10/4214 ,  H01M4/0471 ,  H01M4/1391 ,  H01M10/052 ,  H01M10/0562 ,  H01M10/486 ,  H01M2300/0071 ,  Y02T10/7011

Abstract: The all-solid-state battery according to the present invention includes a cathode, an anode, a solid electrolyte layer disposed between the cathode and the anode, wherein at least one of the cathode and the anode contains a solid electrolyte having deliquescence, and the all-solid-state battery includes a water supply and removal section that supplies water to an electrode containing the solid electrolyte having deliquescence and discharges water in the electrode to the outside of the battery.

Abstract translation: 根据本发明的全固体电池包括阴极，阳极，设置在阴极和阳极之间的固体电解质层，其中阴极和阳极中的至少一个包含具有潮解性的固体电解质，并且 全固态电池包括供水和去除部分，其向包含具有潮解性的固体电解质的电极供水，并将电极中的水排出到电池的外部。

公开(公告)号：US20160329539A1

公开(公告)日：2016-11-10

申请号：US15111512

申请日：2014-02-27

Applicant: HITACHI, LTD.

Inventor： Jun KAWAJI ,  Taigo ONODERA

IPC: H01M2/16 ,  H01M10/0565 ,  H01M4/62 ,  H01M10/0525

CPC classification number: H01M2/168 ,  H01M4/13 ,  H01M4/62 ,  H01M4/621 ,  H01M4/624 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0565 ,  H01M2300/0068 ,  H01M2300/0071 ,  H01M2300/0091

Abstract: An object of the present invention is to provide an electrode capable of effectively reducing the resistance in a lithium secondary cell, and a configuration a solid electrolyte layer.In order to solve this problem, according to the present invention, there is provided a lithium secondary cell including a solid, electrolyte layer provided, between a positive electrode and a negative electrode. A positive electrode mixture layer (40) of the positive electrode includes positive electrode active material particles (42) and solid electrolyte particles (44). A gap between the positive electrode active material particles (42) and the solid electrolyte particles (44) is filled with a Li-conductive binding material, the Li-conductive binding material containing oxide nanoparticles dispersed therein.

Abstract translation: 为了解决这个问题，根据本发明，提供一种锂二次电池，其包括设置在正极和负极之间的固体电解质层。 正极的正极合剂层（40）包括正极活性物质粒子（42）和固体电解质粒子（44）。 正极活性物质粒子（42）与固体电解质粒子（44）之间的间隙填充有Li导电性粘接材料，其中分散有氧化物纳米粒子的Li-导电结合材料。

公开(公告)号：US20160181657A1

公开(公告)日：2016-06-23

申请号：US14969569

申请日：2015-12-15

Applicant: HITACHI, LTD.

Inventor： Jun KAWAJI ,  Yusuke ASARI ,  Tadashi FUJIEDA ,  Hirotugu TAKIZAWA ,  Yamato HAYASHI

IPC: H01M10/0562 ,  H01M10/0585 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2300/0071

Abstract: A solid electrolyte comprises a ramsdellite-type crystal structure and has low activation energy of lithium ions and good lithium ion conductivity. The solid electrolyte is represented by the general formula Li4x−2a−3b−c−2dSn4−x−c−dM(II)aM(III)bM(V)cM(VI)dO8 [wherein M(II) is a divalent cation, M(III) is a trivalent cation, M(V) is a pentavalent cation, and M(VI) is a hexavalent cation, 0≦x≦1.33], wherein in the general formula, 0

Abstract translation: 一种固体电解质包含一种颠簸型晶体结构，并具有低的锂离子活化能和良好的锂离子电导率。 固体电解质由通式Li 4 x-2a-3b-c-2d Sn 4-x-c-dM（II）aM（III）bM（V）cM（VI）dO 8表示[其中M（II）是二价阳离子 ，M（III）是三价阳离子，M（V）是五价阳离子，M（VI）是六价阳离子，其中通式为0

公开(公告)号：US20170084949A1

公开(公告)日：2017-03-23

申请号：US15262072

申请日：2016-09-12

Applicant: HITACHI, LTD. ,  TOHOKU UNIVERSITY

Inventor： Erina YOKOYAMA ,  Jun KAWAJI ,  Yoshiyuki GANBE ,  Nobuto OKA ,  Itaru HONMA

IPC: H01M10/0565 ,  H01M10/0525

Abstract: It is an objective of the invention to provide a quasi-solid state electrolyte that has a well-balanced combination of contact performance with electrode active materials, conductivity, and chemical and structural stability, each at a high level, and an all solid state lithium secondary battery using the quasi-solid state electrolyte. There is provided a quasi-solid state electrolyte comprising: metal oxide particles; and an ionic conductor, the ionic conductor being a mixture of either a glyme or DEME-TFSI and a lithium salt that includes LiFSI, and being carried by the metal oxide particles.

公开(公告)号：US20200014067A1

公开(公告)日：2020-01-09

申请号：US16484669

申请日：2018-02-19

Applicant: Hitachi, Ltd.

Inventor： Suguru UEDA ,  Jun KAWAJI ,  Atsushi IIJIMA ,  Atsushi UNEMOTO ,  Akihide TANAKA

IPC: H01M10/0569 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525

Abstract: Aiming at improvement in the life and rate characteristic of the secondary battery, the semisolid electrolytic solution, the semisolid electrolyte layer, the electrode, and the secondary battery are provided. The semisolid electrolytic solution contains a solvation electrolyte salt, an ethereal solvent for forming a solvation ion liquid together with the solvation electrolyte salt, and a low-viscosity solvent. The mixture molar ratio of the ethereal solvent to the solvation electrolyte salt is in the range from ≥0.5 to ≤1.5. The mixture molar ratio of the low-viscosity solvent to the solvation electrolyte salt is in the range from ≥4 to ≤16.

公开(公告)号：US20150372298A1

公开(公告)日：2015-12-24

申请号：US14765174

申请日：2013-02-26

Applicant: HITACHI, LTD.

Inventor： Tadashi FUJIEDA ,  Jun KAWAJI ,  Takuya AOYAGI ,  Takashi NAITO

IPC: H01M4/48 ,  H01M10/0562

CPC classification number: H01M4/48 ,  C03C3/16 ,  C03C3/21 ,  C03C4/18 ,  C03C10/0072 ,  C03C14/006 ,  C03C2214/16 ,  H01M4/0471 ,  H01M4/485 ,  H01M4/525 ,  H01M4/624 ,  H01M10/0525 ,  H01M10/0562 ,  H01M2004/021 ,  H01M2300/0071 ,  H01M2300/0091

Abstract: An object of the present invention is to enhance energy density and output density of an all-solid state ion secondary battery. To achieve the object, the present invention provides an all-solid state ion secondary battery in which a solid electrolyte layer is joined between a positive electrode active material layer and a negative electrode active material layer, characterized in that at least one of the positive electrode active material layer and the negative electrode active material layer is formed by binding active material particles and solid electrolyte particles together through an ion-conductive and ferroelectric substance.

Abstract translation: 本发明的目的是提高全固态离子二次电池的能量密度和输出密度。 为了实现该目的，本发明提供一种全固态离子二次电池，其中固体电解质层接合在正极活性物质层和负极活性物质层之间，其特征在于，正极中的至少一个 活性物质层和负极活性物质层通过离子传导性和铁电性物质将活性物质粒子和固体电解质粒子结合在一起形成。

公开(公告)号：US20150295224A1

公开(公告)日：2015-10-15

申请号：US14685179

申请日：2015-04-13

Applicant: HITACHI, LTD.

Inventor： Taigo ONODERA ,  Tadashi FUJIEDA ,  Jun KAWAJI

IPC: H01M4/04 ,  H01M4/1391

CPC classification number: H01M4/0471 ,  H01M4/0433 ,  H01M4/1391 ,  H01M10/052 ,  H01M10/0562 ,  Y02T10/7011

Abstract: Disclosed herein is a method for producing an electrode includes a step of reducing lithium-vanadium oxide by heating in reducing gas, a step of causing the reduced lithium-vanadium oxide to deliquesce, a step of mixing the deliquesced lithium oxide with an active material so as to prepare an electrode mixture, and a step of making the electrode mixture into an electrode by virtue of molding after heat treatment to the electrode mixture. The method for producing an all-solid battery further includes a step of bonding the thus-made electrode to a solid electrode layer in such a way that the solid electrode layer is interposed between the electrode and either of cathode and anode to be paired with the electrode.

Abstract translation: 本发明公开了一种电极的制造方法，其包括通过在还原气体中加热还原锂钒氧化物的步骤，使得还原的锂 - 钒氧化物变质的步骤，使潮解的锂氧化物与活性物质混合的步骤 制备电极混合物的步骤，以及通过在对电极混合物进行热处理之后通过模塑将电极混合物制成电极的步骤。 制造全固体电池的方法还包括将这样制作的电极接合到固体电极层的步骤，使得固体电极层插入在电极和阴极和阳极中的任一个之间以与 电极。

公开(公告)号：US20160233510A1

公开(公告)日：2016-08-11

申请号：US15024645

申请日：2013-11-08

Applicant: HITACHI, LTD.

Inventor： Taigoh ONODERA ,  Tadashi FUJIDERA ,  Jun KAWAJI

IPC: H01M4/62 ,  H01M10/0562 ,  H01M4/131 ,  H01M4/134 ,  H01M4/1391 ,  H01M4/38 ,  H01M4/66 ,  H01M10/0585 ,  H01M4/04 ,  H01M4/1395 ,  H01M10/0525 ,  H01M4/525

CPC classification number: H01M4/62 ,  H01M4/0404 ,  H01M4/043 ,  H01M4/0433 ,  H01M4/0471 ,  H01M4/13 ,  H01M4/131 ,  H01M4/134 ,  H01M4/139 ,  H01M4/1391 ,  H01M4/1395 ,  H01M4/382 ,  H01M4/525 ,  H01M4/661 ,  H01M10/05 ,  H01M10/0525 ,  H01M10/0562 ,  H01M10/0585 ,  H01M10/4235 ,  H01M2004/027 ,  H01M2004/028 ,  H01M2220/10 ,  H01M2220/20 ,  H01M2220/30 ,  Y02E60/122 ,  Y02P70/54

Abstract: Provided are an all-solid state battery with a better quality of contact among particles of an active material and with an enhanced discharge capacity; an electrode for an all-solid state battery; and a method of manufacturing the same. The all-solid state battery is manufactured through the steps of: causing a deliquescent solid electrolyte to deliquesce, the deliquescent solid electrolyte having ionic conductivity, electronic conductivity and a deliquescent property; preparing an electrode mixture by mixing the deliquescent solid electrolyte having deliquesced and an active material together; heat-treating and shaping the electrode mixture to produce an electrode; and bonding the thus-produced electrode and a solid electrolyte layer with the solid electrolyte layer interposed between the electrode and another electrode which are paired to serve as a positive electrode and a negative electrode.

Abstract translation: 提供了一种全固态电池，其具有在活性材料颗粒之间更好的接触质量和增强的放电容量; 用于全固态电池的电极; 及其制造方法。 全固态电池通过以下步骤制造：使潮解的固体电解质溶解，具有离子导电性，电子导电性和潮解性的潮解固体电解质; 通过将具有潮解的潮解性固体电解质和活性材料混合在一起来制备电极混合物; 热处理和成形电极混合物以产生电极; 并将由此制成的电极和固体电解质层与插入在电极和另一个电极之间的固体电解质层接合，这些电极与另一个电极配对用作正极和负极。

公开(公告)号：US20150380765A1

公开(公告)日：2015-12-31

申请号：US14764776

申请日：2013-03-15

Applicant: HITACHI, LTD.

Inventor： Tadashi FUJIEDA ,  Jun KAWAJI ,  Takuya AOYAGI ,  Yusuke ASARI ,  Takashi NAITO ,  Hirotsugu TAKIZAWA ,  Yamato HAYAHI ,  Yuya NAKATANI

IPC: H01M10/0562 ,  H01M10/0525

CPC classification number: H01M10/0562 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/054 ,  H01M2300/0068 ,  H01M2300/0071

Abstract: To provide both resistance to reduction and high ion conductivity, a solid electrolyte includes a crystal having a structure expressed as A4-2x-y-zBxSn3-yMyO8-zNz (1≦4−2x−y−z

Abstract translation: 为了提供抗还原性和高离子传导性，固体电解质包括具有表示为A4-2x-y-zBxSn3-yMyO8-zNz（1＆nlE; 4-2x-y-z <4，A：Li， Na，B：Mg，Ca，Sr，Ba，M：V，Nb，Ta，N：F，Cl）或具有表示为A2-1.5x-0.5y-0.5zBxSn3-yMyO8-zNz 0.5＆nlE; 2-1.5x-0.5y-0.5z <2，A：Mg，Ca，B：Sc，Y，Sb，Si，M：V，Nb，Ta，N：F，Cl）。