公开(公告)号：US11600869B2

公开(公告)日：2023-03-07

申请号：US16870153

申请日：2020-05-08

申请人： Andreas Stihl AG & Co. KG ,  Murata Manufacturing Co., Ltd.

发明人： Daniel Sauerteig ,  Julien Scholl ,  Kenichi Ozawa ,  Takayuki Sato ,  Daiki Misawa ,  Yosuke Kono ,  Masaki Kuratsuka

IPC分类号： H01M10/48 ,  H01M10/6235 ,  H01M50/247 ,  H01M50/211 ,  H01M10/0585 ,  H01M10/42 ,  H01M50/209 ,  H01M50/569

摘要： A battery pack supplies an electrically driven treatment apparatus with an electric driving power and includes: a first stack limiting structure and a second stack limiting structure, wherein the second stack limiting structure is disposed opposite and with a fixed distance to the first stack limiting structure; a plurality of pouch cells, wherein the pouch cells are disposed in a stack, wherein the stack is disposed between the first stack limiting structure and the second stack limiting structure and a height of the stack in a stack direction is limited by the first stack limiting structure and the second stack limiting structure; and a sensor arrangement. The sensor arrangement is disposed in the stack. The sensor arrangement extends across a major part of a surface of the pouch cells and is configured such that the height of the stack across the extension is approximately equal. The sensor arrangement has a pressure sensor. The pressure sensor is configured for detecting a pressure force acting in the stack direction on the pouch cells.

公开(公告)号：US10727530B2

公开(公告)日：2020-07-28

申请号：US15997934

申请日：2018-06-05

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Tadashi Matsushita ,  Yuya Akiyama ,  Atsushi Ouki ,  Takashi Sato ,  Masaki Kuratsuka

IPC分类号： H01M4/36 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M2/04 ,  H01M2/14 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0587 ,  H01M4/02

摘要： A positive electrode includes first active material particles, second active material particles, and third active material particles, and the second active material particles include an aggregation of second primary particles. The average particle size D1 of the first active material particles, the average particle size D2 of the second active material particles, and the average particle size D3 of the third active material particles satisfy a relationship of D1>D2>D3. A first particle disintegration rate α1 of the first active material particle and a third particle disintegration rate α2 of the third active material particle are not more than 20%, and a second particle disintegration rate β of the second active material particle is not less than 70%.

公开(公告)号：US10826112B2

公开(公告)日：2020-11-03

申请号：US15974890

申请日：2018-05-09

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Tadashi Matsushita ,  Masaki Kuratsuka

IPC分类号： H01M10/0525 ,  H01M4/583 ,  H01M4/525 ,  H01M4/505 ,  H01M4/485 ,  H01M4/66 ,  H01M4/62 ,  H01M2/16 ,  H01M2/26 ,  H01M10/0587 ,  H01M4/587 ,  H01M4/36 ,  H01M4/131 ,  H01M4/133 ,  H01M4/02

摘要： A negative electrode active material includes a carbon material; a plurality of first particles including a first silicon oxide particle and a carbon layer and a plurality of second particles including a carbon particle and a second silicon oxide particle, and when a first mass of the first silicon oxide particle per gram of the negative electrode active material is referred to as M1 gram, and a second mass of the second silicon oxide particle per gram of the negative electrode active material is referred to as M2 grams, 0.40≤M1/(M1+M2)≤0.85 is satisfied, and when a first discharge capacity associated with the carbon material and the carbon particle is referred to as CpC, and a second discharge capacity associated with the first silicon oxide particle and the second silicon oxide particle is referred to as CpSO, 0.15≤CpSO/(CpC+CpSO)≤0.5 is satisfied.

公开(公告)号：US10403882B2

公开(公告)日：2019-09-03

申请号：US15518344

申请日：2015-10-26

申请人： Murata Manufacturing Co., Ltd.

发明人： Takaaki Matsui ,  Kyohei Ogawa ,  Masaki Kuratsuka

IPC分类号： H01M4/131 ,  C01F7/04 ,  H01M10/0525 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00 ,  H01M4/36 ,  H01M10/052

摘要： The present invention provides a secondary battery-use active material that allows for an improvement in thermal stability after charge and discharge are repeated. The secondary battery-use active material of the present invention includes a cathode active material that includes (A) a main phase and a sub-phase, (B) the main phase containing a first lithium compound represented by LiaNibMcAldOe (where M is an element such as cobalt, and 0.8 0, and (b+c+d)≤1), and (C) the sub-phase containing a second lithium compound that contains lithium, aluminum, and oxygen as constituent elements.

公开(公告)号：US10707539B2

公开(公告)日：2020-07-07

申请号：US15816588

申请日：2017-11-17

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Akira Yamaguchi ,  Kunihiko Hayashi ,  Tadahiko Kubota ,  Hiroyuki Suzuki ,  Akira Ichihashi ,  Yuzuru Fukushima ,  Hironori Sato ,  Masaki Kuratsuka ,  Hideto Watanabe ,  Kimio Tajima ,  Masahiro Miyamoto

IPC分类号： H01M10/42 ,  H01M4/505 ,  H01M2/02 ,  H01M2/16 ,  H01M2/26 ,  H01M2/30 ,  H01M2/34 ,  H01M4/131 ,  H01M4/133 ,  H01M4/36 ,  H01M4/525 ,  H01M10/0587 ,  H01M10/0569 ,  H01M10/0568 ,  H01M10/0525 ,  H01M10/052 ,  H01M4/62 ,  H01M4/04 ,  H01M4/1391 ,  H01M4/1393 ,  H01M4/02

摘要： A battery is provided including an anode, a cathode and an electrolyte; wherein the electrolyte includes one or both of fluoro ethylene carbonate and difluoro ethylene carbonate in an amount of 0.5% by mass or more and 10% by mass or less, wherein the anode includes an anode active material layer provided on an anode current collector, and wherein a thickness of the anode active material layer, after charging the battery, is 58 um or more and 75 um or less.