Battery pack, electric power tool, and electronic apparatus

A battery pack, comprising:

• a plurality of secondary batteries each secondary battery including a plurality of terminals;
• a containing member that contains the plurality of secondary batteries to expose the plurality of terminals;
• a protective member that includes a plurality of openings and with which the plurality of secondary batteries contained in the containing member are covered to expose the plurality of terminals from the plurality of openings;
• and
• a wiring member coupled to the plurality of terminals exposed from the plurality of openings,
• wherein the protective member includes a hydrate-containing material.

An electric power tool, comprising:

• a battery pack;
• and
• a movable section that is supplied with electric power from the battery pack,
• the battery pack including
• a plurality of secondary batteries each secondary battery including a plurality of terminals,
• a containing member that contains the plurality of secondary batteries to expose the plurality of terminals,
• a protective member that includes a plurality of openings and with which the plurality of secondary batteries contained in the containing member are covered to expose the plurality of terminals from the plurality of openings, and
• a wiring member coupled to the plurality of terminals exposed from the plurality of openings,
• wherein one or both of the containing member and the protective member include one or both of a ceramic material and a polymer material having a heat resistance temperature of 300° C. or higher.

An electric power tool, comprising:

• a battery pack;
• and
• a movable section that is supplied with electric power from the battery pack,
• the battery pack including
• a plurality of secondary batteries each secondary battery including a plurality of terminals,
• a containing member that contains the plurality of secondary batteries to expose the plurality of terminals,
• a protective member that includes a plurality of openings and with which the plurality of secondary batteries contained in the containing member are covered to expose the plurality of terminals from the plurality of openings, and
• a wiring member coupled to the plurality of terminals exposed from the plurality of openings,
• wherein the protective member includes a hydrate-containing material.

An electronic apparatus comprising a battery pack as an electric power supply source, the battery pack including

• a plurality of secondary batteries each secondary battery including a plurality of terminals,
• a containing member that contains the plurality of secondary batteries to expose the plurality of terminals,
• a protective member that includes a plurality of openings and with which the plurality of secondary batteries contained in the containing member are covered to expose the plurality of terminals from the plurality of openings, and
• a wiring member coupled to the plurality of terminals exposed from the plurality of openings,
• wherein one or both of the containing member and the protective member include one or both of a ceramic material and a polymer material having a heat resistance temperature of 300° C. or higher.

An electronic apparatus comprising a battery pack as an electric power supply source, the battery pack including

• a plurality of secondary batteries each secondary battery including a plurality of terminals,
• a containing member that contains the plurality of secondary batteries to expose the plurality of terminals,
• a protective member that includes a plurality of openings and with which the plurality of secondary batteries contained in the containing member are covered to expose the plurality of terminals from the plurality of openings, and
• a wiring member coupled to the plurality of terminals exposed from the plurality of openings,
• wherein the protective member includes a hydrate-containing material.