PROBLEM TO BE SOLVED: To provide a secondary battery which enables the reduction in the resistance between electrode groups connected in series in an exterior material, a battery pack and a vehicle.SOLUTION: A secondary battery according to an embodiment comprises two or more electrode groups stacked in a first direction, each electrode group arranged by stacking a negative electrode having a negative electrode tab and a positive electrode having a positive electrode tab to alternate in the first direction. In the secondary battery, the negative electrode tab of one electrode group, and the positive electrode tab of the second electrode group are disposed so as to be arrayed in line in the first direction at one end in a second direction crossing the first direction of a stack in which the electrode groups are stacked, and they are electrically connected in series by a connection body. One of the positive electrode tab of the one electrode group and the negative electrode tab of the second electrode group is disposed at the other end in the second direction; and the other electrode tab is disposed at a position different from those of the negative electrode tab of the one electrode group and the positive electrode tab terminal of the second electrode group which are connected in series at the one end in the second direction.SELECTED DRAWING: Figure 1

    【課題】外装材内で直列接続される電極群間の抵抗を低減できる二次電池、電池パックおよび車両を提供することを目的とする。【解決手段】 実施形態にかかる二次電池は、負極タブを備える負極と正極タブを備える正極とを第1方向に交互に積層して備える電極群を、第1方向に2つ以上積層して備え、一方の前記電極群の前記負極タブと他方の前記電極群の前記正極タブが、複数の前記電極群を積層した積層体の前記第1方向とは交差する第2方向における一方の端部において、前記第1方向に並んで配置されるとともに、接続体によって電気的に直列接続され、一方の前記電極群の前記正極タブと他方の前記電極群の前記負極タブは、そのいずれか一方が前記第2方向における他方の端部に配され、いずれか他方が、前記第2方向における前記一方の端部において、直列接続される一方の前記電極群の前記負極タブと他方の前記電極群の前記正極タブ端子とは異なる位置に配される。【選択図】 図1


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    Title :

    SECONDARY BATTERY, BATTERY PACK AND VEHICLE


    Additional title:

    二次電池、電池パック、及び車両


    Contributors:

    Publication date :

    2018-10-04


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    H01M Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie , PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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