公开(公告)号：US20180212207A1

公开(公告)日：2018-07-26

申请号：US15875209

申请日：2018-01-19

Applicant: TDK Corporation

Inventor： Takayuki Mino ,  Mikio Tsuruoka

IPC: H01M2/02 ,  H01M10/0525

CPC classification number: H01M2/0237 ,  H01M2/0262 ,  H01M2/1077 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6557 ,  H01M10/6561 ,  H01M2220/20 ,  Y02E60/122

Abstract: Disclosed herein is a battery that includes a chargeable/dischargeable battery cell and an outer case that houses the battery cell. The outer case having first and second top plates overlapping each other as viewed in a thickness direction thereof. The first top plate has a first convex part and a first concave part having mutually different heights in the thickness direction, the second top plate has a second convex part and a second concave part having mutually different heights in the thickness direction. The first convex part overlaps the second concave part as viewed in the thickness direction, and the second convex part overlaps the first concave part as viewed in the thickness direction.

公开(公告)号：US11437654B2

公开(公告)日：2022-09-06

申请号：US16604193

申请日：2018-11-20

Applicant: TDK CORPORATION

Inventor： Masayuki Yamashima ,  Mikio Tsuruoka ,  Hiroki Kitamura

IPC: H01M10/44 ,  H01M10/46 ,  H02J7/00 ,  H01M10/42 ,  H01M10/0568 ,  H01M10/0569

Abstract: A battery pack which includes: a battery cell which contains a non-aqueous electrolyte, wherein the battery cell is a non-aqueous electrolyte secondary battery; a casing which stores the battery cell; and at least one liquid leakage sensor which detects liquid leakage from the battery cell, wherein the casing and/or the battery cell have a leaked liquid retention region in which the non-aqueous electrolyte tends to be retained when the non-aqueous electrolyte leaks out of the battery cell, wherein the liquid leakage sensor outputs measurement information as a detection result without using a charging/discharging circuit which charges and discharges the battery cell, and wherein at least one sensor unit of the liquid leakage sensor is provided in the leaked liquid retention region.

公开(公告)号：US10818881B2

公开(公告)日：2020-10-27

申请号：US15875209

申请日：2018-01-19

Applicant: TDK Corporation

Inventor： Takayuki Mino ,  Mikio Tsuruoka

IPC: H01M2/02 ,  H01M10/0525 ,  H01M10/613 ,  H01M10/6557 ,  H01M10/625 ,  H01M2/10 ,  H01M10/647 ,  H01M10/6561 ,  H01M10/052

Abstract: Disclosed herein is a battery that includes a chargeable/dischargeable battery cell and an outer case that houses the battery cell. The outer case having first and second top plates overlapping each other as viewed in a thickness direction thereof. The first top plate has a first convex part and a first concave part having mutually different heights in the thickness direction, the second top plate has a second convex part and a second concave part having mutually different heights in the thickness direction. The first convex part overlaps the second concave part as viewed in the thickness direction, and the second convex part overlaps the first concave part as viewed in the thickness direction.