PROBLEM TO BE SOLVED: To provide an electrode group which can achieve a secondary battery capable of indicating excellent output performance.SOLUTION: According to one embodiment, an electrode group 1 is provided. The electrode group 1 includes: a positive electrode 5; a negative electrode 3; and a solid electrolyte layer 4. The solid electrolyte layer 4 is positioned between the positive electrode 5 and the negative electrode 3. The solid electrolyte layer 4 includes: a first part 4-1 that includes a plurality of first solid electrolyte particles 4A-1 contacted to the positive electrode 5; a second part 4-2 that includes a plurality of second solid electrolyte particles 4A-2 contacted to the negative electrode 3; and a third part 4-3 that includes a plurality of third solid electrolyte particles 4A-3 while being positioned between the first part 4-1 and the second part 4-2. A mean particle size of the third solid electrolyte particle 4A-3 is larger than that of the first solid electrolyte particle 4A-1, and is larger than that of the second solid electrolyte particle 4A-2.SELECTED DRAWING: Figure 2
【課題】優れた出力性能を示すことができる二次電池を実現できる電極群を提供すること【解決手段】1つの実施形態によると、電極群1が提供される。この電極群1は正極5と負極3と固体電解質層4とを具備する。固体電解質層4は正極5と負極3との間に位置している。固体電解質層4は、正極5に接した複数の第1の固体電解質粒子4A−1を含む第1の部分4−1と、負極3に接した複数の第2の固体電解質粒子4A−2を含む第2の部分4−2と、第1の部分4−1と第2の部分4−2との間に位置し且つ複数の第3の固体電解質粒子4A−3を含む第3の部分4−3とを含む。第3の固体電解質粒子4A−3の平均粒子径は、第1の固体電解質粒子4A−1の平均粒子径よりも大きく、第2の固体電解質粒子4A−2の平均粒子径よりも大きい。【選択図】 図2
ELECTRODE GROUP, SECONDARY BATTERY, BATTERY PACK, AND VEHICLE
電極群、二次電池、電池パック及び車両
18.10.2018
Patent
Elektronische Ressource
Japanisch
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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / H01B CABLES , Kabel |
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