Assembled battery, power-supply system and production method of assembled battery

A method of producing an assembled battery including mainly multiple non-aqueous secondary cells A, wherein,

• the multiple non-aqueous secondary cells A and at least one electric device B for voltage detection containing a non-aqueous electrolyte are connected to each other in series;
• when a difference in the non-aqueous secondary cell A between a voltage per cell (VA1) at a depth of discharge of 25% and a voltage per cell (VA2) at a depth of discharge of 75% is designated as ΔVA, and a difference in the electric device B between a voltage per cell (VB1) at a depth of discharge equivalent to the depth of discharge of 25% of the non-aqueous secondary cell A and a voltage per cell (VB2) at a depth of discharge equivalent to the depth of discharge of 75% of the non-aqueous secondary cell A, as ΔVB, the ΔVB of electric device B is greater than the ΔVA of non-aqueous secondary cell A;
• and
• a battery capacity per cell (CB) of the electric device B is greater than a battery capacity per cell (CA) of the non-aqueous secondary cell A, and wherein
• the electric device B is subjected to a preliminary charge before the electric device B is connected to the non-aqueous secondary cells A.

A method of producing an assembled battery including mainly multiple non-aqueous secondary cells A, wherein,

• the multiple non-aqueous secondary cells A and at least one electric device D for internal-resistance detection containing a non-aqueous electrolyte are connected to each other in series;
• when a difference in the non-aqueous secondary cell A between a internal resistance per cell (RA1) at a depth of discharge of 25% and a internal resistance per cell (RA2) at a depth of discharge of 75% is designated as ΔRA, and a difference in the electric device B between a internal resistance per cell (RD1) at a depth of discharge equivalent to the depth of discharge of 25% of the non-aqueous secondary cell A and a internal resistance per cell (RD2) at a depth of discharge equivalent to the depth of discharge of 75% of the non-aqueous secondary cell A, as ΔRD, the ΔRD of electric device D is greater than the ΔRA of non-aqueous secondary cell A;
• and
• a battery capacity per cell (CD) of the electric device D is greater than a battery capacity per cell (CA) of the non-aqueous secondary cell A, and wherein
• the electric device D is subjected to a preliminary charge before the electric device D is connected to the non-aqueous secondary cells A.