US 2015/0086874 A1Published application

Electrochemical device

AssigneeSeiko Epson Corporation

InventorsShigeo KONDO, Yasumasa TAKEUCHI, Yuji SHINOHARA, Takeo KAWASE

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Abstract

An electrochemical device manufactured using an electrode layer in which severe increase of electrode resistance is prevented and/or a solid electrolyte layer in which severe decrease of ion conductivity of a solid electrolyte is prevented is provided. The electrochemical device includes a pair of electrode layers, and a solid electrolyte layer provided between the pair of electrode layers, wherein at least one layer of the electrode layers and the solid electrolyte layer is composed of first particles each providing a function of the at least one layer, second particles and a binder which is composed of an organic polymer and binds the first and second particles, and wherein the at least one layer is formed from a mixture material containing the first particles and binder particles, each of the binder particles including the second particle and the binder carried on at least a part of a surface thereof.

Claims5

Dependent claims

An electrochemical device, comprising:

a pair of electrode layers;
and
a solid electrolyte layer provided between the pair of electrode layers,
wherein at least one layer of the electrode layers is composed of electrode active material particles each providing a function of the one layer, electrochemically inactive insulating particles and a binder which is composed of an organic polymer and binds the electrode active material particles and the electrochemically inactive insulating particles,
wherein the solid electrolyte layer contains a lithium-ion-conducting solid electrolyte,
wherein the binder is carried on at least a part of a surface of each of the electrochemically inactive insulating particles,
wherein each of the electrode layers is formed from a mixture material containing the electrode active material particles and the electrochemically inactive insulating particles with the binder, and
wherein the electrochemically inactive insulating particles are at least one of an alumina, a silica and a zirconia.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/561,725Filed 5 Dec 2014
Priority: JP 2007-24827925 Sep 2007
Published: 26 Mar 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification22 codes

H01M 4/62
Electrodes composed of, or comprising, active material: selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/0435
Involving compressing or compaction: rolling or calendering
H01M 4/13
Electrodes composed of, or comprising, active material: electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators;…
H01M 4/139
Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof: processes of manufacture

Family

Application12/232,794Continuation · filed 24 Sep 2008
Application14/081,482Continuation · filed 15 Nov 2013
Application14/561,725Continuation
US 2009/0081553 A1Published application
US 2014/0072883 A1Published application
US 8,614,020 B2Related patent
US 9,966,604 B2Related patent
US 2015/0086874 A1This patent

From the US filing history. Foreign family members aren’t listed.

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