Battery pack assembled with recycled batteries and method of assembly
First Claim
1. A method of assembling a battery pack with reused batteries that have previously been used as power sources for electric vehicles or hybrid electric vehicles, the method comprising:
- measuring a full charge capacity of each of a plurality of used secondary batteries;
selecting at least two of the plurality of used secondary batteries, from which a first battery has a largest full charge capacity and a second battery has a smallest full charge capacity, so that a difference in full charge capacity between the largest full charge capacity and the smallest full charge capacity is within 10% of the smallest full charge capacity; and
assembling only the selected at least two of the plurality of used secondary batteries to constitute the battery pack with only reused batteries selected by measurement of respective full charge capacity, whereinthe largest full charge capacity is different from the smallest full charge capacity.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is a battery pack producing method and a battery pack capable of suppressing defects such as overcharging or overdischarging in one or more of the used secondary batteries constituting a battery pack, and sufficiently exhibiting the performance of the used secondary batteries of the battery pack. This method includes an obtaining process for obtaining each full charge capacity of the used secondary batteries, a selecting process for selecting one or more used secondary batteries having similar full charge capacities from the used secondary batteries whose full charge capacities have been obtained, and an assembling process for assembling the selected secondary batteries.
-
Citations
6 Claims
-
1. A method of assembling a battery pack with reused batteries that have previously been used as power sources for electric vehicles or hybrid electric vehicles, the method comprising:
-
measuring a full charge capacity of each of a plurality of used secondary batteries; selecting at least two of the plurality of used secondary batteries, from which a first battery has a largest full charge capacity and a second battery has a smallest full charge capacity, so that a difference in full charge capacity between the largest full charge capacity and the smallest full charge capacity is within 10% of the smallest full charge capacity; and assembling only the selected at least two of the plurality of used secondary batteries to constitute the battery pack with only reused batteries selected by measurement of respective full charge capacity, wherein the largest full charge capacity is different from the smallest full charge capacity. - View Dependent Claims (2, 3)
-
-
4. A battery pack comprising:
-
a plurality of used secondary batteries combined for reuse, the used secondary batteries being previously used as power sources for electric vehicles or hybrid electric vehicles, and the battery pack is constituted of only a plurality of used secondary batteries, wherein a difference in full charge capacity between one of the plurality of used secondary batteries selected by measurement of respective full charge capacity, having a largest full charge capacity and another of the plurality of used secondary batteries having a smallest full charge capacity is within 10% of the smallest full charge capacity, and the largest full charge capacity is different from the smallest full charge capacity. - View Dependent Claims (5, 6)
-
Specification