Matsushita Electric Industrial Co., Ltd.

Dai Nippon Printing Co., Ltd.

Kiichi Koike

Minoru Yoshinaka

Hiroyuki Jimbo

Yoshie Suzuki

Tetsuya Ueda

Yasuyuki Yoshihara

Harumi Murochi

Hiroyuki Zimbo

Nobuyuki Takami

Masahito Ishiwata

Norio Saito

Makoto Tanaka

Masataka Ozeki

Shinji Miyauchi

Jiro Suzuki

Akira Iwamura

Mitsuo Okabe

Kazuhiko Shimoda

Koujirou Matsuo

Mansaku Sugimoto

Minoru Kadowaki

Ayako Hirao

A method for charging a secondary battery by measuring the static/open circuit voltage and comparing it to a predetermined value includes: a first step of precharging the secondary battery; thereafter pausing a predetermined interval; a step of measuring a secondary battery voltage Vba1 after performing the pausing; and a step of charging the secondary battery based on the measurement of the secondary battery voltage Vba1.

Method for charging secondary battery

Power controller, power generation system, and control method of power controller

A fuel cell system includes a fuel cell that supplies an oxidizer containing oxygen to a positive electrode, supplies a fuel gas containing hydrogen to a negative electrode and generates power, a battery containing at least water as an electrolyte, a hydrogen tank that stores hydrogen generated from the battery and a hydrogen pipe that supplies hydrogen in the hydrogen tank to the fuel cell.

Fuel cell system and method of operating fuel cell system

The present invention provides a high output storage battery with a high reliability that is easy to fabricate. This storage battery comprises a plurality of monoblock containers united to each other with space provided between the adjacent monoblock containers and one common cover to seal the openings of those monoblock containers. Each monoblock container has a plurality of cell compartments separated from each other by partitions. Each of those cell compartments houses an assembly element comprising a plurality of positive electrode plates and negative electrode plates stacked with separators placed between them.

Storage battery having a plurality of containers with one cover

A method for charging a lead battery is provided. In the method, a SOC is controlled so as to be less than 100%, and when the lead battery has not been charged and discharged for a predetermined time, refresh charge is performed so that the SOC becomes at least 90% or more.

Method for charging determining life of and detecting state of charge of battery

Sealed lead-acid storage battery

The present invention provides an enclosed lead storage battery comprising a plate assembly consisting of a positive plate, negative plates and a separator, an electrolyte held in position by the plate assembly, and a jacket made of film- or sheet-formed synthetic resin and surrounding the plate assembly and electrolyte. The jacket is of a multilayer laminate structure made by disposing a polyolefin film on the inside contacting the plate assembly and laminating a film of thermoplastic synthetic resin in two or more layers on the outside thereof. According to the present invention, the plate assembly can be encased with an unexpensive jacket of a simple construction, and the joint of the jacket to the pole posts of the plate assembly is strengthened to offer a leak-proof enclosed lead storage battery.

Enclosed lead storage battery and process for producing the same

Sealed storage battery

Growing community of inventors

Kanagawa, Japan

Kiichi Koike