Battery pack and method for producing the same
AssigneeSony Corporation
InventorsTakeru Yamamoto, Ken Segawa, Shunsuke Saito
Life of this patent
Estimating the term…
Abstract
A battery pack includes: a battery including a battery element covered with a packaging member, the battery element including a positive electrode and a negative electrode which are spirally wound together or stacked on one another through a separator; a protection circuit board for the battery; and a covering material collectively covering the battery and the protection circuit board. The covering material includes a shape-retaining polymer. The shape-retaining polymer contains an insulating curable polyurethane resin including polyol and polyisocyanate.
Claims19
A battery pack comprising:
- a battery including a battery element covered with a packaging member, the battery element including a positive electrode and a negative electrode which are spirally wound together or stacked on one another through a separator;
- a protection circuit board for the battery;
- and
- a covering material collectively covering the battery and the protection circuit board,
- wherein the covering material includes a shape-retaining polymer comprising an insulating curable polyurethane resin, and
- wherein the insulating curable polyurethane resin comprises a polyol and a polyisocyanate.
A battery pack comprising:
- a battery including a battery element covered with a packaging member, the battery element including a positive electrode and a negative electrode which are spirally wound together or stacked on one another through a separator;
- a protection circuit board for the battery;
- and
- a covering material collectively covering the battery and the protection circuit board,
- wherein the covering material includes a shape-retaining polymer comprising an insulating curable polyurethane resin, and
- wherein the insulating curable polyurethane resin comprises a polyol and a polyisocyanate selected from the group consisting of:
- carbodiimide-modified polyisocyanate obtained by modifying the polyisocyanate with carbodiimide, isocyanurate-modified polyisocyanate obtained by modifying the polyisocyanate with isocyanurate, and an urethane polymer having an isocyanate group at the end of molecule, which is a reaction product of polyol and the excess polyisocyanate.
Dependencies are inferred from the claim text.