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SEPARATORS WITH LAYERED DOUBLE HYDROXIDES FOR ELECTROCHEMICAL CELLS
Separators, electrochemical cells and methods are provided, to improve operation of cells such as metal-ion batteries and fuel cells. Separators comprise a porous, ionically conductive film including layered double hydroxide(s) (LDHs), which are functional ceramic additives, removing potentially harmful anions from the electrolyte by incorporating them into the LDH structure of positively- charged sheets with intermediary anions. For example, anions which are electrolyte decomposition products or cathode dissolution products may be absorbed into the LDH to prevent them from causing damage to the cell and shortening the cell's life. LDHs may be incorporated in the separator structure, coated thereupon or otherwise associated therewith. Additional benefits include dimensional stability during thermal excursions, fire retardancy and impurity scavenging.
提供了隔膜、电化学电池和方法，以改进诸如金属‑离子蓄电池和燃料电池的电池的运行。隔膜包括多孔离子导电膜，其包括作为功能性陶瓷添加剂的层状双氢氧化物(LDH)，通过将它们并入具有中间阴离子的带正电荷片材的LDH结构中来从电解质中除去潜在有害的阴离子。例如，作为电解质分解产物或正极溶解产物的阴离子可被吸收到LDH中以防止它们对电池造成损害和缩短电池寿命。LDH可以并入在隔膜结构中，涂覆在其上或以其它方式与其关联。附加的益处包括在热偏移期间的尺寸稳定性、阻燃性和杂质清除性。
SEPARATORS WITH LAYERED DOUBLE HYDROXIDES FOR ELECTROCHEMICAL CELLS
Separators, electrochemical cells and methods are provided, to improve operation of cells such as metal-ion batteries and fuel cells. Separators comprise a porous, ionically conductive film including layered double hydroxide(s) (LDHs), which are functional ceramic additives, removing potentially harmful anions from the electrolyte by incorporating them into the LDH structure of positively- charged sheets with intermediary anions. For example, anions which are electrolyte decomposition products or cathode dissolution products may be absorbed into the LDH to prevent them from causing damage to the cell and shortening the cell's life. LDHs may be incorporated in the separator structure, coated thereupon or otherwise associated therewith. Additional benefits include dimensional stability during thermal excursions, fire retardancy and impurity scavenging.
提供了隔膜、电化学电池和方法，以改进诸如金属‑离子蓄电池和燃料电池的电池的运行。隔膜包括多孔离子导电膜，其包括作为功能性陶瓷添加剂的层状双氢氧化物(LDH)，通过将它们并入具有中间阴离子的带正电荷片材的LDH结构中来从电解质中除去潜在有害的阴离子。例如，作为电解质分解产物或正极溶解产物的阴离子可被吸收到LDH中以防止它们对电池造成损害和缩短电池寿命。LDH可以并入在隔膜结构中，涂覆在其上或以其它方式与其关联。附加的益处包括在热偏移期间的尺寸稳定性、阻燃性和杂质清除性。
SEPARATORS WITH LAYERED DOUBLE HYDROXIDES FOR ELECTROCHEMICAL CELLS
用于电化学电池的具有层状双氢氧化物的隔膜
YAKUPOV ILYA (author) / MENEGAZZO NICOLA (author) / WEAVER MARK (author)
2022-02-01
Patent
Electronic Resource
Chinese
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
/
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
C04B
Kalk
,
LIME
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