Mixtures suitable as solid electrolyte or separator for electrochemical cells and having specific plasticizers
申请人:——
公开号:US20040054057A1
公开(公告)日:2004-03-18
A mixture Ia comprises a mix IIa composed of
a) from 1 to 95% by weight of a solid III, preferably a basic solid III, with a primary particle size of from 5 nm to 20 &mgr;m and
b) from 5 to 99% by weight of a polymeric composition IV, obtainable by polymerizing
b1) from 5 to 100% by weight, based on the composition IV, of a condensation product V of
&agr;) at least one compound VI which is capable of reacting with a carboxylic acid or with a sulfonic acid or with a derivative or a mixture of two or more of these, and
&bgr;) at least 1 mol per mole of the compound VI of a carboxylic acid or sulfonic acid VII which has at least one functional group capable of free-radical polymerization, or of a derivative thereof or of a mixture of two or more thereof and
b2) from 0 to 95% by weight, based on the composition IV, of another compound VIII with an average molecular weight (number average) of at least 5000 having polyether segments in its main or side chain and
at least one ester of the formula (E1) to (E5)
1
where each of R
1
, R
2
, R
3
and R
4
is identical with or different from the others and, independently of the others, is linear or branched-chain C
1
-C
4
-alkyl (—CH
2
—CH
2
—O)
n
—CH
3
, where n is from 1 to 3, C
3
-C
6
-cycloalkyl or an aromatic hydrocarbon group which may in turn be substituted, with the proviso that at least one of the groups R
1
, R
2
, R
3
or R
4
is (—CH
2
—CH
2—O)
n
—CH
3
, where n is from 1 to 3.
混合物 Ia 包括混合物 IIa,其组成如下
a) 1%至 95%(按重量计)的固体 III,最好是碱性固体 III,主要粒径为 5 纳米至 20 微米;以及
b) 5%至 99%(按重量计)的聚合组合物 IV,可通过聚合以下物质获得
b1) 以组合物 IV 为基准,重量百分比为 5%至 100%的下列物质的缩合产物 V
至少一种能与羧酸、磺酸或衍生物或其中两种或两种以上的混合物反应的化合物 VI,以及
每摩尔化合物 VI 至少含有 1 摩尔的羧酸或磺酸 VII(其至少有一个官能团能进行 自由基聚合),或其衍生物,或其两种或两种以上的混合物,以及
b2) 以组合物 IV 计,0-95%(以重量计)的另一种化合物 VIII,其平均分子量(平均 数)至少为 5000,在其主链或侧链中具有聚醚段,以及
至少一种式 (E1) 至 (E5) 的酯
1
其中每个 R
1
, R
2
, R
3
和 R
4
与其他物质相同或不同,且独立于其他物质,是线性或支链 C
1
-C
4
-烷基(-CH
2
-CH
2
-O)
n
-CH
3
其中 n 为 1 至 3,C
3
-C
6
-环烷基或可被取代的芳香烃基团,但至少有一个基团 R
1
, R
2
, R
3
或 R
4
是(-CH
2
-CH
2-O)
n
-CH
3
其中 n 为 1 至 3。