Panasonic Intellectual Property Management Co., Ltd.

Honami Sako

Masahisa Fujimoto

Shuji Ito

Takahiro Kurabuchi

Sho Shibata

A lithium ion secondary battery includes a positive electrode, a negative electrode, and an electrolyte disposed between the positive electrode and the negative electrode. The electrolyte includes a polymeric electrolyte. The polymeric electrolyte is composed of a polymer and a lithium salt of a fluorosulfonyl-group-containing compound, and the polymer is a polymer of a vinylene carbonate species. The lithium salt of a fluorosulfonyl-group-containing compound includes lithium bis(fluorosulfonyl)imide.

Lithium ion secondary battery

A flow battery includes a negative electrode, a positive electrode, a first liquid in contact with the negative electrode, a second liquid in contact with the positive electrode, and a lithium-ion-conductive film disposed between the first liquid and the second liquid. At least one of the first liquid or the second liquid contains a redox species and lithium ions. The lithium-ion-conductive film includes an inorganic member containing zeolite.

Flow battery

In a flow battery according to one aspect of the present disclosure, a first liquid does not include an undesired compound. The flow battery satisfies requirement (i), (ii), (iii) or (iv). (i) An anode active materialincludes graphite, and the first liquid has an equilibrium potential of not more than 0.15 V vs. Li/Li. (ii) An anode active material includes aluminum, and the first liquid has an equilibrium potential of not more than 0.18 V vs. Li/Li. (iii) An anode active material includes tin, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li. (iv) An anode active material includes silicon, and the first liquid has an equilibrium potential of not more than 0.25 V vs. Li/Li.

The flow battery according to the present disclosure comprises an anode and a cathode. The cathode comprises a first electrode, a first liquid, a first active material, and a first circulation mechanism. The first liquid is in contact with the first active material and the first electrode. The first circulation mechanism is configured to circulate the first liquid between the first electrode and the first active material. The first liquid includes perylene or the derivative thereof.

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Osaka, Japan

Honami Sako