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US 12,503,531 B2Granted
Organic and inorganic composite polymer electrolyte and all solid state battery comprising the same
AssigneesSK On Co., Ltd., SK Innovation Co., Ltd.
InventorsMyung Soo Park, Seung Hwan Lee, Han Sol Lee, Hyeon Jin Go, Myoung Lae Kim, Hong Won Lee
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Abstract
Provided is an organic and inorganic composite polymer electrolyte and an all-solid-state battery including the same, and provided is an organic and inorganic composite polymer electrolyte including a flame-retardant polymer and a flame-retardant inorganic salt with a shear modulus of 7 to 60 GPa, and an all-solid-state battery including the organic and inorganic composite polymer electrolyte.
Claims19
An organic and inorganic composite polymer electrolyte comprising:
- a flame-retardant polymer matrix;
- flame-retardant inorganic salt particles within the flame-retardant polymer matrix, wherein the flame-retardant inorganic salt particles comprise a shear modulus of 7 to 60 GPa, and wherein the flame-retardant inorganic salt particles generate an F radical;
- and
- an electrolyte solution comprising a non-aqueous solvent and an electrolyte salt impregnated into the flame-retardant polymer matrix,
- wherein the flame-retardant inorganic salt particles do not dissolve in the electrolyte solution,
- wherein the flame-retardant polymer matrix comprises a fluorinated polymer containing at least one phosphonate group,
- wherein a phosphorus element in the phosphonate group of the fluorinated polymer is directly bonded to an aromatic ring.
4 more elements
Dependencies are inferred from the claim text.