公开(公告)号：US20240170227A1

公开(公告)日：2024-05-23

申请号：US18260316

申请日：2021-12-20

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TOSHITAKA KOBAYASHI ,  HIROKI HAYASHI ,  EIKO ISHII ,  HIDEKI SHIMAMOTO ,  RYOTA MORIOKA

IPC: H01G9/12 ,  H01G9/10 ,  H01M50/107

CPC classification number: H01G9/12 ,  H01G9/10 ,  H01M50/107

Abstract: A power storage device of the present disclosure includes: a power storage element; a case that houses the power storage element, the case having a bottomed tubular shape and including an opening at one end of the case; and a sealing body that seals the opening. The case includes a first pressing part and a second pressing part in a vicinity of the opening. The first pressing part presses a side surface of the sealing body and protrudes to an inside of the case, and the second pressing part presses an upper surface of the sealing body. The sealing body includes a slit on the upper surface of the sealing body. The slit extends radially inward of the case with respect to the second pressing part and opens at the side surface of the sealing body.

公开(公告)号：US20230223206A1

公开(公告)日：2023-07-13

申请号：US18000276

申请日：2021-05-18

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIROKI HAYASHI ,  NAO MATSUMURA ,  HIDEKI SHIMAMOTO ,  SHOHEI MASUDA ,  HIDEO SAKATA ,  HIROYUKI MAESHIMA

IPC: H01G11/06 ,  H01G11/48 ,  H01G11/50

CPC classification number: H01G11/06 ,  H01G11/48 ,  H01G11/50

Abstract: An electrochemical device includes a positive electrode that includes an active layer containing a polyaniline compound. An infrared absorption spectrum of the active layer has a first peak, a second peak, a third peak, and a fourth peak that are derived from the polyaniline compound. The first peak appears at a wave number in a range from 1,100 cm−1 to 1,200 cm−1, inclusive. The second peak appears at a wave number in a range of more than 1,200 cm−1 and less than or equal to 1,400 cm−1. The third peak appears at a wave number in a range from 1,450 cm−1 to 1,550 cm−1, inclusive. And the fourth peak appears at a wave number in a range of more than 1,550 cm−1 and less than or equal to 1,650 cm−1. In a discharged state, a ratio ID3/ID0 of a height ID3 of the third peak to a total ID0 of heights of the first peak, the second peak, the third peak, and the fourth peak ranges from 0.18 to 1.42, inclusive.

公开(公告)号：US20220328877A1

公开(公告)日：2022-10-13

申请号：US17614352

申请日：2020-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIDEO SAKATA ,  NAO MATSUMURA ,  HIDEKI SHIMAMOTO ,  KENICHI NAGAMITSU ,  NOBUTAKA TAKEDA

IPC: H01M10/0568 ,  H01M10/0525 ,  H01M4/60 ,  H01G11/48 ,  H01G11/50 ,  H01G11/62

Abstract: An electrochemical device includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolytic solution. The positive electrode active material contains a conductive polymer, and the conductive polymer is configured to be doped and dedoped with anions. The electrolytic solution contains (a) a first salt of a lithium ion and a first anion and (b) a second salt of a lithium ion and a second anion. The first anion is a bis(sulfonyl)imide anion containing fluorine.

公开(公告)号：US20220115699A1

公开(公告)日：2022-04-14

申请号：US17422423

申请日：2020-01-22

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： HIDEO SAKATA ,  NAO MATSUMURA ,  HIDEKI SHIMAMOTO ,  TOSHIAKI SHIMIZU

IPC: H01M10/0567 ,  H01M10/0569 ,  H01M10/0525 ,  H01M10/0568 ,  H01M4/60

Abstract: An electrochemical device includes a positive electrode including a positive electrode active material, a negative electrode including a negative electrode active material, and an electrolytic solution. The positive electrode active material includes a conductive polymer, and the electrolytic solution contains anions and cations. The conductive polymer is capable of doping and dedoping of the anions. The cations includes a lithium ion and a quaternary ammonium ion.