SECONDARY BATTERY

• Main Authors: ISOTANI YUJI, AOYAGI SHINTARO, TANATSUNA KIYOSHI
• Format: Patent
• Language: English; Japanese
• Published: 13.12.2021
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

To present a battery cell structure capable of improving heat dissipation without lowering the energy density or impairing miniaturization while sufficiently providing heat transfer to an electrode layer of a battery cell.SOLUTION: A cell structure includes positive/negative electrodes in which an electrode active material is contained in a conductive substrate having a three-dimensional structure, and a current collector connected to the positive/negative electrodes, and one surface of the current collector is connected to the positive/negative electrodes in the longitudinal direction (large area portion), and the other surface of the current collector is exposed in the longitudinal direction (large area portion) of the cell.SELECTED DRAWING: Figure 2 【課題】電池セルの電極層に熱伝達性を充分に備えさせながら、かつ、エネルギー密度を低下させたり、小型化を損なわせたりすることなく放熱性を向上させることができる電池セルの構造を提示することを目的とする。【解決手段】三次元構造を有する導電性基材に電極活物質が含有されてなる正/負極と、正/負極に連なる集電体と、を備えるセル構造に関し、前記集電体の一方の面は、前記正/負極の長手方向（大面積部）と連なると共に、前記集電体の他方の面は、セルの長手方向（大面積部）において露出している構成とする。【選択図】図２