An embodiment of the present invention provides a non-aqueous electrolyte battery showing excellent durability at high temperature. The non-aqueous electrolyte battery comprises a positive electrode, a negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode current collector and a negative electrode composite layer disposed on the negative electrode current collector. The negative electrode composite layer is composed of titanium-containing metal oxide particles, which absorb and discharge lithium ions, and a binder including an acryl-based resin. The titanium-containing metal oxide particle has a phase including a carbon material on at least some of the surface. The negative electrode is formed according to formula (I), α / β > 6, wherein α represents the peel strength (kN/m) between the current collector and the negative electrode composite layer measured by a surface-interface cutting method and β represents cutting strength (kN/m) in the negative electrode composite layer measured by a surface-interface cutting method.
실시 형태에 의하면, 비수 전해질 전지가 제공된다. 이 비수 전해질 전지는, 정극과, 부극과, 비수 전해질을 포함한다. 부극은, 부극 집전체와, 이 부극 집전체 위에 배치되어 있는 부극 합제층을 포함한다. 부극 합제층은, 리튬 이온을 흡장 및 방출하는 티타늄 함유 금속 산화물 입자와 아크릴계 수지를 포함하는 결착제를 포함하고 있다. 티타늄 함유 금속 산화물 입자는, 표면의 적어도 일부에 탄소 재료를 포함하는 상을 갖는다. 이 부극은, 하기 식 (I)을 만족한다:여기서, α는 표면·계면 절삭법에 의해 측정되는 집전체와 부극 합제층의 박리 강도(kN/m)이며, β는 부극 합제층에 있어서의 표면·계면 절삭법에 의해 측정되는 절삭 강도(kN/m)이다.
NONAQUEOUS ELECTROLYTE BATTERY BATTERY PACK AND VEHICLE
비수 전해질 전지, 전지 팩, 및 차량
2018-03-29
Patent
Elektronische Ressource
Koreanisch
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 |
Nonaqueous electrolyte battery, battery pack, and vehicle
Europäisches Patentamt | 2024
|Nonaqueous electrolyte battery, battery pack and vehicle
Europäisches Patentamt | 2020
|NONAQUEOUS ELECTROLYTE BATTERY BATTERY PACK AND VEHICLE
Europäisches Patentamt | 2017
|NONAQUEOUS ELECTROLYTE BATTERY, BATTERY PACK AND VEHICLE
Europäisches Patentamt | 2018
|Nonaqueous electrolyte battery, battery pack and vehicle
Europäisches Patentamt | 2018
|