Stacked battery
First Claim
Patent Images
1. A stacked battery comprising:
- a first electrode body includinga plurality of positive electrode plates,a plurality of negative electrode plates, anda plurality of separators,each of the positive electrode plates and each of negative electrode plates being alternately stacked with each of the separators interposed between each of the positive electrode plates and each of the negative electrode plates;
a second electrode body includinga plurality of positive electrode plates,a plurality of negative electrode plates, anda plurality of separators,each of the positive electrode plates and each of negative electrode plates being alternately stacked with each of the separators interposed between each of the positive electrode plates and each of the negative electrode plates;
the second electrode body provided above the first electrode body,each positive electrode plate including a positive electrode protruding portion protruding more laterally than the negative electrode plate,each negative electrode plate including a negative electrode protruding portion protruding more laterally than the positive electrode plate;
a first current collecting case being electrically conductive, the first current collecting case including a first facing portion facing the first electrode body in a stacking direction of the first electrode body and the second electrode body;
a second current collecting case being electrically conductive, the second current collecting case housing the first electrode body, the second current collecting case being disposed between the first electrode body and the second electrode body, the second current collecting case being configured to be electrically insulated from the first current collecting case, the second current collecting case including a second facing portion facing one of the first electrode body and the second electrode body in the stacking direction; and
a third current collecting case being electrically conductive, the third current collecting case housing the second electrode body, the third current collecting case being configured to be electrically insulated from the second electrode body, the third current collecting case including a third facing portion facing the second electrode body in the stacking direction,the first current collecting case, the second current collecting case, and the third current collecting case being stacked in this order in the stacking direction,the first current collecting case including a first positive electrode wall portion, the first positive electrode wall portion extending from an edge portion of the first facing portion such that the first positive electrode wall portion covers a first side portion where the positive electrode protruding portion of the first electrode body is located, an inner surface of the first positive electrode wall portion being electrically connected to an edge side of the positive electrode protruding portion of the first electrode body,the second current collecting case including a second positive electrode wall portion, the second positive electrode wall portion extending from an edge portion of the second facing portion such that the second positive electrode wall portion covers a first side portion where the positive electrode protruding portion of the second electrode body is located, an inner surface of the second positive electrode wall portion being electrically connected to an edge side of the positive electrode protruding portion of the second electrode body, the second current collecting case including a first negative electrode wall portion, the first negative electrode wall portion extending from an edge portion of the second facing portion such that the first negative electrode wall portion covers a second side portion where the negative electrode protruding portion of the first electrode body is located, an inner surface of the first negative electrode wall portion being electrically connected to an edge side of the negative electrode protruding portion of the first electrode body,the third current collecting case including a second negative electrode wall portion, the second negative electrode wall portion extending from an edge portion of the third facing portion such that the second negative electrode wall portion covers a second side portion where the negative electrode protruding portion of the second electrode body is located, an inner surface of the second negative electrode wall portion being electrically connected to an edge side of the negative electrode protruding portion of the second electrode body.
1 Assignment
0 Petitions
Accused Products
Abstract
A stacked battery includes a first current collecting case, a second current collecting case, and a third current collecting case, a first electrode body and a second electrode body. Each of The first current collecting case and the second current collecting case includes a positive electrode wall portion. Each of the second current collecting case and the third current collecting case includes a second negative electrode wall portion.
4 Citations
5 Claims
-
1. A stacked battery comprising:
-
a first electrode body including a plurality of positive electrode plates, a plurality of negative electrode plates, and a plurality of separators, each of the positive electrode plates and each of negative electrode plates being alternately stacked with each of the separators interposed between each of the positive electrode plates and each of the negative electrode plates; a second electrode body including a plurality of positive electrode plates, a plurality of negative electrode plates, and a plurality of separators, each of the positive electrode plates and each of negative electrode plates being alternately stacked with each of the separators interposed between each of the positive electrode plates and each of the negative electrode plates; the second electrode body provided above the first electrode body, each positive electrode plate including a positive electrode protruding portion protruding more laterally than the negative electrode plate, each negative electrode plate including a negative electrode protruding portion protruding more laterally than the positive electrode plate; a first current collecting case being electrically conductive, the first current collecting case including a first facing portion facing the first electrode body in a stacking direction of the first electrode body and the second electrode body; a second current collecting case being electrically conductive, the second current collecting case housing the first electrode body, the second current collecting case being disposed between the first electrode body and the second electrode body, the second current collecting case being configured to be electrically insulated from the first current collecting case, the second current collecting case including a second facing portion facing one of the first electrode body and the second electrode body in the stacking direction; and a third current collecting case being electrically conductive, the third current collecting case housing the second electrode body, the third current collecting case being configured to be electrically insulated from the second electrode body, the third current collecting case including a third facing portion facing the second electrode body in the stacking direction, the first current collecting case, the second current collecting case, and the third current collecting case being stacked in this order in the stacking direction, the first current collecting case including a first positive electrode wall portion, the first positive electrode wall portion extending from an edge portion of the first facing portion such that the first positive electrode wall portion covers a first side portion where the positive electrode protruding portion of the first electrode body is located, an inner surface of the first positive electrode wall portion being electrically connected to an edge side of the positive electrode protruding portion of the first electrode body, the second current collecting case including a second positive electrode wall portion, the second positive electrode wall portion extending from an edge portion of the second facing portion such that the second positive electrode wall portion covers a first side portion where the positive electrode protruding portion of the second electrode body is located, an inner surface of the second positive electrode wall portion being electrically connected to an edge side of the positive electrode protruding portion of the second electrode body, the second current collecting case including a first negative electrode wall portion, the first negative electrode wall portion extending from an edge portion of the second facing portion such that the first negative electrode wall portion covers a second side portion where the negative electrode protruding portion of the first electrode body is located, an inner surface of the first negative electrode wall portion being electrically connected to an edge side of the negative electrode protruding portion of the first electrode body, the third current collecting case including a second negative electrode wall portion, the second negative electrode wall portion extending from an edge portion of the third facing portion such that the second negative electrode wall portion covers a second side portion where the negative electrode protruding portion of the second electrode body is located, an inner surface of the second negative electrode wall portion being electrically connected to an edge side of the negative electrode protruding portion of the second electrode body. - View Dependent Claims (2, 3, 4, 5)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
-
Original AssigneeToyota Jidosha Kabushiki Kaisha (Toyota Motor Corporation)
-
InventorsKikuchi, Takuro
-
Primary Examiner(s)Mershon, Jayne L
-
Application NumberUS15/705,932Publication NumberTime in Patent Office564 DaysField of Search429154US Class CurrentCPC Class CodesH01M 10/0413 Large-sized flat cells or b...H01M 10/0436 Small-sized flat cells or b...H01M 50/103 prismatic or rectangular H0...H01M 50/119 MetalsH01M 50/209 adapted for prismatic or re...H01M 50/50 Current conducting connecti...H01M 50/533 characterised by the shape ...H01M 50/548 on opposite sides of the cellH01M 50/557 Plate-shaped terminalsY02E 60/10 Energy storage using batteriesY02P 70/50 Manufacturing or production...
