JP2017535913A5 - - Google Patents
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- JP2017535913A5 JP2017535913A5 JP2017514823A JP2017514823A JP2017535913A5 JP 2017535913 A5 JP2017535913 A5 JP 2017535913A5 JP 2017514823 A JP2017514823 A JP 2017514823A JP 2017514823 A JP2017514823 A JP 2017514823A JP 2017535913 A5 JP2017535913 A5 JP 2017535913A5
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- JP
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- Prior art keywords
- cathode
- core
- sulfur
- conductive
- lithium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002245 particle Substances 0.000 claims description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 20
- 229910052717 sulfur Inorganic materials 0.000 claims description 12
- 239000011593 sulfur Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 229920000371 poly(diallyldimethylammonium chloride) polymer Polymers 0.000 claims description 5
- 239000003273 ketjen black Substances 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 3
- -1 lithium-sulfur Chemical compound 0.000 claims 8
- 229920001940 conductive polymer Polymers 0.000 claims 7
- 239000011149 active material Substances 0.000 claims 5
- 239000011258 core-shell material Substances 0.000 claims 5
- 229920001467 poly(styrenesulfonates) Polymers 0.000 claims 5
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 claims 4
- 230000002209 hydrophobic Effects 0.000 claims 4
- 229960002796 polystyrene sulfonate Drugs 0.000 claims 4
- 239000011970 polystyrene sulfonate Substances 0.000 claims 4
- 241000255925 Diptera Species 0.000 claims 3
- 239000003575 carbonaceous material Substances 0.000 claims 3
- 239000000463 material Substances 0.000 claims 3
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims 2
- 235000019270 ammonium chloride Nutrition 0.000 claims 2
- 239000006229 carbon black Substances 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 229920001577 copolymer Polymers 0.000 claims 2
- QDHHCQZDFGDHMP-UHFFFAOYSA-N monochloramine Chemical compound ClN QDHHCQZDFGDHMP-UHFFFAOYSA-N 0.000 claims 2
- 150000003839 salts Chemical class 0.000 claims 2
- 239000011780 sodium chloride Substances 0.000 claims 2
- 239000000758 substrate Substances 0.000 claims 2
- 239000006182 cathode active material Substances 0.000 claims 1
- 229910052744 lithium Inorganic materials 0.000 claims 1
- 238000001878 scanning electron micrograph Methods 0.000 description 5
- 238000003917 TEM image Methods 0.000 description 3
- 239000002105 nanoparticle Substances 0.000 description 3
- 229920000144 PEDOT:PSS Polymers 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 230000002194 synthesizing Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Description
Claims (18)
- カソードであって、
導電性基材と、
前記導電性基材上の活物質のコーティングとを含み、
前記活物質のコーティングは、硫黄材料を含み、
前記硫黄材料は、析出した1つの硫黄元素粒子であるコアをシェル内に含むサブミクロンコア−シェル粒子を含み、
前記シェルは、
前記1つの硫黄元素粒子であるコアの最も近くにある、少なくとも1つの疎水性領域を有するイオン的に帯電した自己組織化導電性コポリマーの第1層と、
前記第1層に隣接およびイオン結合し、前記第1層とは相反する電荷を有する、少なくとも第2の導電性ポリマー層とを含み、
前記析出した1つの硫黄元素粒子である前記コアは、少なくとも1つの疎水性領域を有する前記イオン的に帯電した自己組織化導電性コポリマーの存在下で形成され、
前記析出した1つの硫黄元素粒子である前記コアは、前記コア内に分散している官能基化導電性炭素材料の粒子を含む、カソード。 - 前記官能基化導電性炭素材料が、−COOHで官能基化されたケッチェンブラック(登録商標)(カーボンブラック)である、請求項1に記載のカソード。
- カソードの前記活物質の硫黄元素含有量が、カソードの前記活物質総重量の75重量%以上である、請求項1に記載のカソード。
- リチウム金属を含むアノードと;
請求項1に記載のカソードと
を含む、リチウム硫黄電池。 - 前記官能基化導電性炭素材料が、−COOHで官能基化されたケッチェンブラック(登録商標)(カーボンブラック)である、請求項4に記載のリチウム硫黄電池。
- カソードの前記活物質の硫黄元素含有量が、カソードの前記活物質総重量の75重量%以上である、請求項4に記載のリチウム硫黄電池。
- 請求項4に記載のリチウム硫黄電池を備えた車両。
- 前記硫黄材料の硫黄元素含有量が、少なくとも95重量%である、請求項1に記載のカソード。
- 前記コア内に分散している前記官能基化導電性炭素の含有量が、前記コア−シェル粒子の0.1〜5重量%である、請求項1に記載のカソード。
- 外側の導電性ポリマー層の表面上にあるかまたは埋め込まれている前記官能基化導電性炭素をさらに備え、前記官能基化導電性炭素の含有量が、前記コア−シェル粒子の0.1〜5重量%である、請求項1に記載のカソード。
- 前記析出した1つの硫黄元素粒子である前記コアは、直径が1マイクロメートル未満である、請求項1に記載のカソード。
- 少なくとも1つの疎水性領域を有する前記導電性ポリマーが、ポリ(3,4−エチレンジオキシチオフェン)(PEDOT)とポリスチレンスルホネート(PSS)とのポリマー塩である、請求項11に記載のカソード。
- 前記第2の導電性ポリマー層がポリジメチルジアリルアンモニウムクロリド(PDADMAC)を含む、請求項12に記載のカソード。
- PEDOT−PSSおよびPDADMACの合計7つの交互の層を含む、請求項13に記載のカソード。
- 前記官能基化導電性炭素の含有量が、前記コア−シェル粒子の0.1〜5重量%である、請求項4に記載のリチウム硫黄電池。
- 外側の導電性ポリマー層の表面上にあるかまたは埋め込まれている官能基化導電性炭素をさらに備え、前記官能基化導電性炭素の含有量が、前記コア−シェル粒子の0.1〜5重量%である、請求項4に記載のリチウム硫黄電池。
- 少なくとも1つの疎水性領域を有する前記導電性ポリマーが、ポリ(3,4−エチレンジオキシチオフェン)(PEDOT)とポリスチレンスルホネート(PSS)とのポリマー塩であり、析出された硫黄元素の前記コアは、直径が1マイクロメートル未満である、請求項4に記載のリチウム硫黄電池。
- 前記第2の導電性ポリマー層がポリジメチルジアリルアンモニウムクロリド(PDADMAC)を含む、請求項4に記載のリチウム硫黄電池。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/489,597 US9819015B2 (en) | 2014-09-18 | 2014-09-18 | Encapsulated sulfur sub-micron particles as electrode active material |
US14/489,597 | 2014-09-18 | ||
PCT/US2015/049329 WO2016044048A1 (en) | 2014-09-18 | 2015-09-10 | Encapsulated sulfur sub-micron particles as electrode active material |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2017535913A JP2017535913A (ja) | 2017-11-30 |
JP2017535913A5 true JP2017535913A5 (ja) | 2019-05-16 |
JP6759189B2 JP6759189B2 (ja) | 2020-09-23 |
Family
ID=55526584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017514823A Expired - Fee Related JP6759189B2 (ja) | 2014-09-18 | 2015-09-10 | 電極活物質としてのカプセル化硫黄サブミクロン粒子 |
Country Status (4)
Country | Link |
---|---|
US (1) | US9819015B2 (ja) |
JP (1) | JP6759189B2 (ja) |
DE (1) | DE112015004257T5 (ja) |
WO (1) | WO2016044048A1 (ja) |
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-
2014
- 2014-09-18 US US14/489,597 patent/US9819015B2/en active Active
-
2015
- 2015-09-10 WO PCT/US2015/049329 patent/WO2016044048A1/en active Application Filing
- 2015-09-10 JP JP2017514823A patent/JP6759189B2/ja not_active Expired - Fee Related
- 2015-09-10 DE DE112015004257.1T patent/DE112015004257T5/de not_active Withdrawn
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