公开(公告)号：US10069311B2

公开(公告)日：2018-09-04

申请号：US14917495

申请日：2014-06-26

申请人： Murata Manufacturing Co., Ltd.

发明人： Naoyuki Sugeno ,  Kohki Watanabe ,  Masumi Terauchi ,  Shuichi Takizawa ,  Noritoshi Imamura ,  Koji Umetsu

IPC分类号： H02J7/00 ,  B60L11/18 ,  H01M10/42 ,  H02J7/02 ,  H01M10/44 ,  H01M10/48

摘要： A power storage device includes: power storage units each including at least one battery, the power storage units being connected in series; cell balance units connected in parallel to the respective power storage units via switches; and a control unit that performs control to charge the power storage units with a first constant current value, and, when the power storage unit having the highest voltage among the power storage units reaches a first potential, connect the corresponding one of the cell balance units to the power storage unit having the highest voltage, and switch the charging current to a second constant current value that is smaller than the first constant current value.

公开(公告)号：US10008862B2

公开(公告)日：2018-06-26

申请号：US14778980

申请日：2014-03-06

申请人： Murata Manufacturing Co., Ltd.

发明人： Shuichi Takizawa ,  Naoyuki Sugeno ,  Koji Umetsu ,  Eiji Kumagai ,  Bunya Sato ,  Aniket Khade ,  Tatsuya Adachi ,  Atsushi Chinen ,  Hisato Asai ,  Kohki Watanabe

IPC分类号： H02J7/00 ,  H01M10/44 ,  H01M10/48 ,  H01M10/46

CPC分类号： H02J7/0019 ,  H01M10/441 ,  H01M10/46 ,  H01M10/482 ,  H02J7/0021 ,  H02J7/0024 ,  Y02T10/7055

摘要： There is provided a power storage device including a plurality of modules each including secondary batteries, a charging switch that controls charging to the secondary batteries, a discharging switch that controls discharging of the secondary batteries, and a voltage measuring unit that measures a voltage of the module, and a switch control unit that controls one or both of the charging switch and the discharging switch. The modules are connected in parallel. The switch control unit maintains an on state of the discharging switch for at least one of the modules for a predetermined period, and controls the charging switch of the module in which a maximum module charging current estimated based on the voltage of the module is a predetermined value or less, to be in an on state.

公开(公告)号：US10056773B2

公开(公告)日：2018-08-21

申请号：US14646442

申请日：2013-10-07

申请人： Murata Manufacturing Co., Ltd.

发明人： Naoyuki Sugeno ,  Kohki Watanabe ,  Shuichi Takizawa ,  Kenji Sato ,  Koji Umetsu

IPC分类号： H02J7/00 ,  H01M10/42 ,  H01M10/44 ,  B60L1/02 ,  B60L3/00 ,  B60L7/14 ,  B60L11/12 ,  B60L11/18 ,  B60L15/20 ,  H02J7/35

CPC分类号： H02J7/0063 ,  B60L1/02 ,  B60L3/0046 ,  B60L7/14 ,  B60L15/2009 ,  B60L50/51 ,  B60L50/62 ,  B60L50/64 ,  B60L53/14 ,  B60L53/30 ,  B60L53/65 ,  B60L58/12 ,  B60L58/15 ,  B60L58/16 ,  B60L58/21 ,  B60L58/24 ,  B60L58/27 ,  B60L58/32 ,  B60L2200/12 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2240/12 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/441 ,  B60L2240/443 ,  B60L2240/545 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2240/662 ,  B60L2240/80 ,  B60L2250/10 ,  B60L2250/16 ,  H01M10/4207 ,  H01M10/425 ,  H01M10/443 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0021 ,  H02J7/0052 ,  H02J7/0081 ,  H02J7/0091 ,  H02J7/35 ,  H02J2007/005 ,  H02J2007/0067 ,  H02J2007/0098 ,  Y02T10/6217 ,  Y02T10/645 ,  Y02T10/7011 ,  Y02T10/7044 ,  Y02T10/7055 ,  Y02T10/7061 ,  Y02T10/7072 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275 ,  Y02T10/7291 ,  Y02T90/121 ,  Y02T90/127 ,  Y02T90/128 ,  Y02T90/14 ,  Y02T90/16 ,  Y02T90/163 ,  Y02T90/169 ,  Y02T90/34 ,  Y04S30/14

摘要： A battery package including a power storage portion; and a control device, where the control device determines if a first temperature of the power storage portion is higher than a predetermined temperature, and if the first temperature is higher than the predetermined temperature, discharges the power storage portion at a first discharge rate.